Home / 84,319.65-126,417.21-51,032.40

Finding the Fourth Proportional to 84,319.65, 126,417.21 and 51,032.40

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Solution

The fourth proportional to 84,319.65, 126,417.21 and 51,032.40 is: 76,510.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,319.65 : 126,417.21 = 51,032.40 : x
  2. Step 2: Convert to fraction form
    84,319.65/126,417.21 = 51,032.40/x
  3. Step 3: Cross multiply
    84,319.65x = 126,417.21 × 51,032.40
  4. Step 4: Simplify right side
    84,319.65x = 6,451,372,962.17
  5. Step 5: Solve for x
    x = 6,451,372,962.17/84,319.65
  6. Step 6: Final answer
    x = 76,510.91

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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.