Home / 72,032.28-99,376.80-45,127.98

Finding the Fourth Proportional to 72,032.28, 99,376.80 and 45,127.98

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Solution

The fourth proportional to 72,032.28, 99,376.80 and 45,127.98 is: 62,259.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,032.28 : 99,376.80 = 45,127.98 : x
  2. Step 2: Convert to fraction form
    72,032.28/99,376.80 = 45,127.98/x
  3. Step 3: Cross multiply
    72,032.28x = 99,376.80 × 45,127.98
  4. Step 4: Simplify right side
    72,032.28x = 4,484,674,242.86
  5. Step 5: Solve for x
    x = 4,484,674,242.86/72,032.28
  6. Step 6: Final answer
    x = 62,259.23

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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.