Home / 58,731.50-81,116.75-38,678.02

Finding the Fourth Proportional to 58,731.50, 81,116.75 and 38,678.02

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Solution

The fourth proportional to 58,731.50, 81,116.75 and 38,678.02 is: 53,419.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,731.50 : 81,116.75 = 38,678.02 : x
  2. Step 2: Convert to fraction form
    58,731.50/81,116.75 = 38,678.02/x
  3. Step 3: Cross multiply
    58,731.50x = 81,116.75 × 38,678.02
  4. Step 4: Simplify right side
    58,731.50x = 3,137,434,679.86
  5. Step 5: Solve for x
    x = 3,137,434,679.86/58,731.50
  6. Step 6: Final answer
    x = 53,419.97

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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.