Home / 99,281.30-137,008.26-56,840.13

Finding the Fourth Proportional to 99,281.30, 137,008.26 and 56,840.13

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Solution

The fourth proportional to 99,281.30, 137,008.26 and 56,840.13 is: 78,439.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,281.30 : 137,008.26 = 56,840.13 : x
  2. Step 2: Convert to fraction form
    99,281.30/137,008.26 = 56,840.13/x
  3. Step 3: Cross multiply
    99,281.30x = 137,008.26 × 56,840.13
  4. Step 4: Simplify right side
    99,281.30x = 7,787,567,309.47
  5. Step 5: Solve for x
    x = 7,787,567,309.47/99,281.30
  6. Step 6: Final answer
    x = 78,439.42

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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.