Home / 42,748.16-64,122.24-11,583.40

Finding the Fourth Proportional to 42,748.16, 64,122.24 and 11,583.40

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Solution

The fourth proportional to 42,748.16, 64,122.24 and 11,583.40 is: 17,375.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,748.16 : 64,122.24 = 11,583.40 : x
  2. Step 2: Convert to fraction form
    42,748.16/64,122.24 = 11,583.40/x
  3. Step 3: Cross multiply
    42,748.16x = 64,122.24 × 11,583.40
  4. Step 4: Simplify right side
    42,748.16x = 742,753,554.82
  5. Step 5: Solve for x
    x = 742,753,554.82/42,748.16
  6. Step 6: Final answer
    x = 17,375.10

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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.