Home / 76,387.96-114,587.46-31,970.02

Finding the Fourth Proportional to 76,387.96, 114,587.46 and 31,970.02

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Solution

The fourth proportional to 76,387.96, 114,587.46 and 31,970.02 is: 47,957.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,387.96 : 114,587.46 = 31,970.02 : x
  2. Step 2: Convert to fraction form
    76,387.96/114,587.46 = 31,970.02/x
  3. Step 3: Cross multiply
    76,387.96x = 114,587.46 × 31,970.02
  4. Step 4: Simplify right side
    76,387.96x = 3,663,363,387.95
  5. Step 5: Solve for x
    x = 3,663,363,387.95/76,387.96
  6. Step 6: Final answer
    x = 47,957.34

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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.