Home / 99,425.48-137,211.96-56,984.12

Finding the Fourth Proportional to 99,425.48, 137,211.96 and 56,984.12

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Solution

The fourth proportional to 99,425.48, 137,211.96 and 56,984.12 is: 78,640.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,425.48 : 137,211.96 = 56,984.12 : x
  2. Step 2: Convert to fraction form
    99,425.48/137,211.96 = 56,984.12/x
  3. Step 3: Cross multiply
    99,425.48x = 137,211.96 × 56,984.12
  4. Step 4: Simplify right side
    99,425.48x = 7,818,902,794.08
  5. Step 5: Solve for x
    x = 7,818,902,794.08/99,425.48
  6. Step 6: Final answer
    x = 78,640.84

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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.