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Finding the Fourth Proportional to 63,875.60, 89,309.20 and 63,875.60

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Solution

The fourth proportional to 63,875.60, 89,309.20 and 63,875.60 is: 89,309.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,875.60 : 89,309.20 = 63,875.60 : x
  2. Step 2: Convert to fraction form
    63,875.60/89,309.20 = 63,875.60/x
  3. Step 3: Cross multiply
    63,875.60x = 89,309.20 × 63,875.60
  4. Step 4: Simplify right side
    63,875.60x = 5,704,678,735.52
  5. Step 5: Solve for x
    x = 5,704,678,735.52/63,875.60
  6. Step 6: Final answer
    x = 89,309.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.