Home / 75,685.13-104,445.47-42,151.13

Finding the Fourth Proportional to 75,685.13, 104,445.47 and 42,151.13

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Solution

The fourth proportional to 75,685.13, 104,445.47 and 42,151.13 is: 58,168.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,685.13 : 104,445.47 = 42,151.13 : x
  2. Step 2: Convert to fraction form
    75,685.13/104,445.47 = 42,151.13/x
  3. Step 3: Cross multiply
    75,685.13x = 104,445.47 × 42,151.13
  4. Step 4: Simplify right side
    75,685.13x = 4,402,494,167.03
  5. Step 5: Solve for x
    x = 4,402,494,167.03/75,685.13
  6. Step 6: Final answer
    x = 58,168.55

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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.