Home / 99,387.49-137,157.24-54,068.02

Finding the Fourth Proportional to 99,387.49, 137,157.24 and 54,068.02

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Solution

The fourth proportional to 99,387.49, 137,157.24 and 54,068.02 is: 74,615.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,387.49 : 137,157.24 = 54,068.02 : x
  2. Step 2: Convert to fraction form
    99,387.49/137,157.24 = 54,068.02/x
  3. Step 3: Cross multiply
    99,387.49x = 137,157.24 × 54,068.02
  4. Step 4: Simplify right side
    99,387.49x = 7,415,820,395.46
  5. Step 5: Solve for x
    x = 7,415,820,395.46/99,387.49
  6. Step 6: Final answer
    x = 74,615.23

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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.