Home / 80,666.13-121,032.44-35,663.82

Finding the Fourth Proportional to 80,666.13, 121,032.44 and 35,663.82

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Solution

The fourth proportional to 80,666.13, 121,032.44 and 35,663.82 is: 53,510.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,666.13 : 121,032.44 = 35,663.82 : x
  2. Step 2: Convert to fraction form
    80,666.13/121,032.44 = 35,663.82/x
  3. Step 3: Cross multiply
    80,666.13x = 121,032.44 × 35,663.82
  4. Step 4: Simplify right side
    80,666.13x = 4,316,479,154.32
  5. Step 5: Solve for x
    x = 4,316,479,154.32/80,666.13
  6. Step 6: Final answer
    x = 53,510.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.