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Finding the Fourth Proportional to 77,609.68, 107,082.66 and 45,325.98

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Solution

The fourth proportional to 77,609.68, 107,082.66 and 45,325.98 is: 62,538.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,609.68 : 107,082.66 = 45,325.98 : x
  2. Step 2: Convert to fraction form
    77,609.68/107,082.66 = 45,325.98/x
  3. Step 3: Cross multiply
    77,609.68x = 107,082.66 × 45,325.98
  4. Step 4: Simplify right side
    77,609.68x = 4,853,626,505.51
  5. Step 5: Solve for x
    x = 4,853,626,505.51/77,609.68
  6. Step 6: Final answer
    x = 62,538.93

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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.