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Finding the Fourth Proportional to 57,577.76, 79,479.60 and 45,006.56

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Solution

The fourth proportional to 57,577.76, 79,479.60 and 45,006.56 is: 62,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,577.76 : 79,479.60 = 45,006.56 : x
  2. Step 2: Convert to fraction form
    57,577.76/79,479.60 = 45,006.56/x
  3. Step 3: Cross multiply
    57,577.76x = 79,479.60 × 45,006.56
  4. Step 4: Simplify right side
    57,577.76x = 3,577,103,386.18
  5. Step 5: Solve for x
    x = 3,577,103,386.18/57,577.76
  6. Step 6: Final answer
    x = 62,126.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.