Home / 57,638.32-79,535.16-42,539.14

Finding the Fourth Proportional to 57,638.32, 79,535.16 and 42,539.14

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Solution

The fourth proportional to 57,638.32, 79,535.16 and 42,539.14 is: 58,699.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,638.32 : 79,535.16 = 42,539.14 : x
  2. Step 2: Convert to fraction form
    57,638.32/79,535.16 = 42,539.14/x
  3. Step 3: Cross multiply
    57,638.32x = 79,535.16 × 42,539.14
  4. Step 4: Simplify right side
    57,638.32x = 3,383,357,306.16
  5. Step 5: Solve for x
    x = 3,383,357,306.16/57,638.32
  6. Step 6: Final answer
    x = 58,699.79

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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.