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Finding the Fourth Proportional to 70,353.50, 97,087.84 and 40,545.50

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Solution

The fourth proportional to 70,353.50, 97,087.84 and 40,545.50 is: 55,952.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,353.50 : 97,087.84 = 40,545.50 : x
  2. Step 2: Convert to fraction form
    70,353.50/97,087.84 = 40,545.50/x
  3. Step 3: Cross multiply
    70,353.50x = 97,087.84 × 40,545.50
  4. Step 4: Simplify right side
    70,353.50x = 3,936,475,016.72
  5. Step 5: Solve for x
    x = 3,936,475,016.72/70,353.50
  6. Step 6: Final answer
    x = 55,952.80

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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.