Home / 99,637.62-137,498.31-54,317.40

Finding the Fourth Proportional to 99,637.62, 137,498.31 and 54,317.40

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Solution

The fourth proportional to 99,637.62, 137,498.31 and 54,317.40 is: 74,957.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,637.62 : 137,498.31 = 54,317.40 : x
  2. Step 2: Convert to fraction form
    99,637.62/137,498.31 = 54,317.40/x
  3. Step 3: Cross multiply
    99,637.62x = 137,498.31 × 54,317.40
  4. Step 4: Simplify right side
    99,637.62x = 7,468,550,703.59
  5. Step 5: Solve for x
    x = 7,468,550,703.59/99,637.62
  6. Step 6: Final answer
    x = 74,957.14

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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.