Home / 70,345.50-97,086.04-40,123.90

Finding the Fourth Proportional to 70,345.50, 97,086.04 and 40,123.90

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Solution

The fourth proportional to 70,345.50, 97,086.04 and 40,123.90 is: 55,376.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,345.50 : 97,086.04 = 40,123.90 : x
  2. Step 2: Convert to fraction form
    70,345.50/97,086.04 = 40,123.90/x
  3. Step 3: Cross multiply
    70,345.50x = 97,086.04 × 40,123.90
  4. Step 4: Simplify right side
    70,345.50x = 3,895,470,560.36
  5. Step 5: Solve for x
    x = 3,895,470,560.36/70,345.50
  6. Step 6: Final answer
    x = 55,376.26

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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.