Home / 85,550.52-128,347.68-35,614.02

Finding the Fourth Proportional to 85,550.52, 128,347.68 and 35,614.02

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Solution

The fourth proportional to 85,550.52, 128,347.68 and 35,614.02 is: 53,430.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,550.52 : 128,347.68 = 35,614.02 : x
  2. Step 2: Convert to fraction form
    85,550.52/128,347.68 = 35,614.02/x
  3. Step 3: Cross multiply
    85,550.52x = 128,347.68 × 35,614.02
  4. Step 4: Simplify right side
    85,550.52x = 4,570,976,842.47
  5. Step 5: Solve for x
    x = 4,570,976,842.47/85,550.52
  6. Step 6: Final answer
    x = 53,430.15

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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.