Home / 91,335,731.20-125,921,376.64-72,559,612.64

Finding the Fourth Proportional to 91,335,731.20, 125,921,376.64 and 72,559,612.64

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Solution

The fourth proportional to 91,335,731.20, 125,921,376.64 and 72,559,612.64 is: 100,035,398.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,335,731.20 : 125,921,376.64 = 72,559,612.64 : x
  2. Step 2: Convert to fraction form
    91,335,731.20/125,921,376.64 = 72,559,612.64/x
  3. Step 3: Cross multiply
    91,335,731.20x = 125,921,376.64 × 72,559,612.64
  4. Step 4: Simplify right side
    91,335,731.20x = 9,136,806,312,093,944
  5. Step 5: Solve for x
    x = 9,136,806,312,093,944/91,335,731.20
  6. Step 6: Final answer
    x = 100,035,398.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.