Home / 72,733.17-100,371.40-42,512.47

Finding the Fourth Proportional to 72,733.17, 100,371.40 and 42,512.47

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Solution

The fourth proportional to 72,733.17, 100,371.40 and 42,512.47 is: 58,666.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,733.17 : 100,371.40 = 42,512.47 : x
  2. Step 2: Convert to fraction form
    72,733.17/100,371.40 = 42,512.47/x
  3. Step 3: Cross multiply
    72,733.17x = 100,371.40 × 42,512.47
  4. Step 4: Simplify right side
    72,733.17x = 4,267,036,131.36
  5. Step 5: Solve for x
    x = 4,267,036,131.36/72,733.17
  6. Step 6: Final answer
    x = 58,666.99

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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.