Home / 84,280.02-126,424.89-31,689.96

Finding the Fourth Proportional to 84,280.02, 126,424.89 and 31,689.96

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Solution

The fourth proportional to 84,280.02, 126,424.89 and 31,689.96 is: 47,536.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,280.02 : 126,424.89 = 31,689.96 : x
  2. Step 2: Convert to fraction form
    84,280.02/126,424.89 = 31,689.96/x
  3. Step 3: Cross multiply
    84,280.02x = 126,424.89 × 31,689.96
  4. Step 4: Simplify right side
    84,280.02x = 4,006,399,707.10
  5. Step 5: Solve for x
    x = 4,006,399,707.10/84,280.02
  6. Step 6: Final answer
    x = 47,536.77

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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.