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Finding the Fourth Proportional to 64,893.80, 97,340.70 and 42,732.20

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Solution

The fourth proportional to 64,893.80, 97,340.70 and 42,732.20 is: 64,098.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,893.80 : 97,340.70 = 42,732.20 : x
  2. Step 2: Convert to fraction form
    64,893.80/97,340.70 = 42,732.20/x
  3. Step 3: Cross multiply
    64,893.80x = 97,340.70 × 42,732.20
  4. Step 4: Simplify right side
    64,893.80x = 4,159,582,260.54
  5. Step 5: Solve for x
    x = 4,159,582,260.54/64,893.80
  6. Step 6: Final answer
    x = 64,098.30

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1.5x scale

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.