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Finding the Fourth Proportional to 70,463.61, 97,242.80 and 42,163.83

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Solution

The fourth proportional to 70,463.61, 97,242.80 and 42,163.83 is: 58,187.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,463.61 : 97,242.80 = 42,163.83 : x
  2. Step 2: Convert to fraction form
    70,463.61/97,242.80 = 42,163.83/x
  3. Step 3: Cross multiply
    70,463.61x = 97,242.80 × 42,163.83
  4. Step 4: Simplify right side
    70,463.61x = 4,100,128,677.10
  5. Step 5: Solve for x
    x = 4,100,128,677.10/70,463.61
  6. Step 6: Final answer
    x = 58,187.89

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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.