Home / 66,220.76-99,275.10-28,752.50

Finding the Fourth Proportional to 66,220.76, 99,275.10 and 28,752.50

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Solution

The fourth proportional to 66,220.76, 99,275.10 and 28,752.50 is: 43,104.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,220.76 : 99,275.10 = 28,752.50 : x
  2. Step 2: Convert to fraction form
    66,220.76/99,275.10 = 28,752.50/x
  3. Step 3: Cross multiply
    66,220.76x = 99,275.10 × 28,752.50
  4. Step 4: Simplify right side
    66,220.76x = 2,854,407,312.75
  5. Step 5: Solve for x
    x = 2,854,407,312.75/66,220.76
  6. Step 6: Final answer
    x = 43,104.42

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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.