Home / 91,320.71-136,981.10-59,757.32

Finding the Fourth Proportional to 91,320.71, 136,981.10 and 59,757.32

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Solution

The fourth proportional to 91,320.71, 136,981.10 and 59,757.32 is: 89,636.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,320.71 : 136,981.10 = 59,757.32 : x
  2. Step 2: Convert to fraction form
    91,320.71/136,981.10 = 59,757.32/x
  3. Step 3: Cross multiply
    91,320.71x = 136,981.10 × 59,757.32
  4. Step 4: Simplify right side
    91,320.71x = 8,185,623,918.50
  5. Step 5: Solve for x
    x = 8,185,623,918.50/91,320.71
  6. Step 6: Final answer
    x = 89,636.01

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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.