Home / 91,125.22-136,688.74-31,962.32

Finding the Fourth Proportional to 91,125.22, 136,688.74 and 31,962.32

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Solution

The fourth proportional to 91,125.22, 136,688.74 and 31,962.32 is: 47,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,125.22 : 136,688.74 = 31,962.32 : x
  2. Step 2: Convert to fraction form
    91,125.22/136,688.74 = 31,962.32/x
  3. Step 3: Cross multiply
    91,125.22x = 136,688.74 × 31,962.32
  4. Step 4: Simplify right side
    91,125.22x = 4,368,889,248.28
  5. Step 5: Solve for x
    x = 4,368,889,248.28/91,125.22
  6. Step 6: Final answer
    x = 47,943.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.