Home / 56,578.28-78,079.33-31,086.23

Finding the Fourth Proportional to 56,578.28, 78,079.33 and 31,086.23

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Solution

The fourth proportional to 56,578.28, 78,079.33 and 31,086.23 is: 42,899.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,578.28 : 78,079.33 = 31,086.23 : x
  2. Step 2: Convert to fraction form
    56,578.28/78,079.33 = 31,086.23/x
  3. Step 3: Cross multiply
    56,578.28x = 78,079.33 × 31,086.23
  4. Step 4: Simplify right side
    56,578.28x = 2,427,192,225.71
  5. Step 5: Solve for x
    x = 2,427,192,225.71/56,578.28
  6. Step 6: Final answer
    x = 42,899.72

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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.