Home / 65,590.50-98,417.87-28,139.49

Finding the Fourth Proportional to 65,590.50, 98,417.87 and 28,139.49

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Solution

The fourth proportional to 65,590.50, 98,417.87 and 28,139.49 is: 42,223.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,590.50 : 98,417.87 = 28,139.49 : x
  2. Step 2: Convert to fraction form
    65,590.50/98,417.87 = 28,139.49/x
  3. Step 3: Cross multiply
    65,590.50x = 98,417.87 × 28,139.49
  4. Step 4: Simplify right side
    65,590.50x = 2,769,428,668.69
  5. Step 5: Solve for x
    x = 2,769,428,668.69/65,590.50
  6. Step 6: Final answer
    x = 42,223.02

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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.