Home / 57,432.78-79,235.10-42,361.16

Finding the Fourth Proportional to 57,432.78, 79,235.10 and 42,361.16

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Solution

The fourth proportional to 57,432.78, 79,235.10 and 42,361.16 is: 58,442.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,432.78 : 79,235.10 = 42,361.16 : x
  2. Step 2: Convert to fraction form
    57,432.78/79,235.10 = 42,361.16/x
  3. Step 3: Cross multiply
    57,432.78x = 79,235.10 × 42,361.16
  4. Step 4: Simplify right side
    57,432.78x = 3,356,490,352.54
  5. Step 5: Solve for x
    x = 3,356,490,352.54/57,432.78
  6. Step 6: Final answer
    x = 58,442.07

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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.