Home / 40,136.48-55,415.13-25,035.20

Finding the Fourth Proportional to 40,136.48, 55,415.13 and 25,035.20

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Solution

The fourth proportional to 40,136.48, 55,415.13 and 25,035.20 is: 34,565.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,136.48 : 55,415.13 = 25,035.20 : x
  2. Step 2: Convert to fraction form
    40,136.48/55,415.13 = 25,035.20/x
  3. Step 3: Cross multiply
    40,136.48x = 55,415.13 × 25,035.20
  4. Step 4: Simplify right side
    40,136.48x = 1,387,328,862.58
  5. Step 5: Solve for x
    x = 1,387,328,862.58/40,136.48
  6. Step 6: Final answer
    x = 34,565.28

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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.