Home / 99,309.24-137,045.12-53,988.35

Finding the Fourth Proportional to 99,309.24, 137,045.12 and 53,988.35

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Solution

The fourth proportional to 99,309.24, 137,045.12 and 53,988.35 is: 74,503.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,309.24 : 137,045.12 = 53,988.35 : x
  2. Step 2: Convert to fraction form
    99,309.24/137,045.12 = 53,988.35/x
  3. Step 3: Cross multiply
    99,309.24x = 137,045.12 × 53,988.35
  4. Step 4: Simplify right side
    99,309.24x = 7,398,838,949.18
  5. Step 5: Solve for x
    x = 7,398,838,949.18/99,309.24
  6. Step 6: Final answer
    x = 74,503.03

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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.