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Finding the Fourth Proportional to 70,487.46, 97,178.58 and 55,999.71

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Solution

The fourth proportional to 70,487.46, 97,178.58 and 55,999.71 is: 77,204.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,487.46 : 97,178.58 = 55,999.71 : x
  2. Step 2: Convert to fraction form
    70,487.46/97,178.58 = 55,999.71/x
  3. Step 3: Cross multiply
    70,487.46x = 97,178.58 × 55,999.71
  4. Step 4: Simplify right side
    70,487.46x = 5,441,972,298.21
  5. Step 5: Solve for x
    x = 5,441,972,298.21/70,487.46
  6. Step 6: Final answer
    x = 77,204.83

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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.