Home / 57,378.25-79,159.80-42,306.67

Finding the Fourth Proportional to 57,378.25, 79,159.80 and 42,306.67

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Solution

The fourth proportional to 57,378.25, 79,159.80 and 42,306.67 is: 58,366.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,378.25 : 79,159.80 = 42,306.67 : x
  2. Step 2: Convert to fraction form
    57,378.25/79,159.80 = 42,306.67/x
  3. Step 3: Cross multiply
    57,378.25x = 79,159.80 × 42,306.67
  4. Step 4: Simplify right side
    57,378.25x = 3,348,987,535.87
  5. Step 5: Solve for x
    x = 3,348,987,535.87/57,378.25
  6. Step 6: Final answer
    x = 58,366.85

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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.