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Finding the Fourth Proportional to 60,458.10, 90,686.70 and 18,338.10

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Solution

The fourth proportional to 60,458.10, 90,686.70 and 18,338.10 is: 27,507.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,458.10 : 90,686.70 = 18,338.10 : x
  2. Step 2: Convert to fraction form
    60,458.10/90,686.70 = 18,338.10/x
  3. Step 3: Cross multiply
    60,458.10x = 90,686.70 × 18,338.10
  4. Step 4: Simplify right side
    60,458.10x = 1,663,021,773.27
  5. Step 5: Solve for x
    x = 1,663,021,773.27/60,458.10
  6. Step 6: Final answer
    x = 27,507.01

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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.