Home / 56,723.24-78,256.92-56,635.76

Finding the Fourth Proportional to 56,723.24, 78,256.92 and 56,635.76

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Solution

The fourth proportional to 56,723.24, 78,256.92 and 56,635.76 is: 78,136.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,723.24 : 78,256.92 = 56,635.76 : x
  2. Step 2: Convert to fraction form
    56,723.24/78,256.92 = 56,635.76/x
  3. Step 3: Cross multiply
    56,723.24x = 78,256.92 × 56,635.76
  4. Step 4: Simplify right side
    56,723.24x = 4,432,140,139.46
  5. Step 5: Solve for x
    x = 4,432,140,139.46/56,723.24
  6. Step 6: Final answer
    x = 78,136.23

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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.