Home / 90,136.71-124,384.91-49,300.19

Finding the Fourth Proportional to 90,136.71, 124,384.91 and 49,300.19

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Solution

The fourth proportional to 90,136.71, 124,384.91 and 49,300.19 is: 68,032.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,136.71 : 124,384.91 = 49,300.19 : x
  2. Step 2: Convert to fraction form
    90,136.71/124,384.91 = 49,300.19/x
  3. Step 3: Cross multiply
    90,136.71x = 124,384.91 × 49,300.19
  4. Step 4: Simplify right side
    90,136.71x = 6,132,198,827.71
  5. Step 5: Solve for x
    x = 6,132,198,827.71/90,136.71
  6. Step 6: Final answer
    x = 68,032.20

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1.5x scale

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.