Home / 42,387.79-58,348.26-36,642.51

Finding the Fourth Proportional to 42,387.79, 58,348.26 and 36,642.51

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Solution

The fourth proportional to 42,387.79, 58,348.26 and 36,642.51 is: 50,439.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,387.79 : 58,348.26 = 36,642.51 : x
  2. Step 2: Convert to fraction form
    42,387.79/58,348.26 = 36,642.51/x
  3. Step 3: Cross multiply
    42,387.79x = 58,348.26 × 36,642.51
  4. Step 4: Simplify right side
    42,387.79x = 2,138,026,700.53
  5. Step 5: Solve for x
    x = 2,138,026,700.53/42,387.79
  6. Step 6: Final answer
    x = 50,439.68

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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.