Home / 90,700.79-136,061.10-30,772.53

Finding the Fourth Proportional to 90,700.79, 136,061.10 and 30,772.53

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Solution

The fourth proportional to 90,700.79, 136,061.10 and 30,772.53 is: 46,162.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,700.79 : 136,061.10 = 30,772.53 : x
  2. Step 2: Convert to fraction form
    90,700.79/136,061.10 = 30,772.53/x
  3. Step 3: Cross multiply
    90,700.79x = 136,061.10 × 30,772.53
  4. Step 4: Simplify right side
    90,700.79x = 4,186,944,281.58
  5. Step 5: Solve for x
    x = 4,186,944,281.58/90,700.79
  6. Step 6: Final answer
    x = 46,162.16

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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.