Home / 56,883.62-78,520.92-42,777.20

Finding the Fourth Proportional to 56,883.62, 78,520.92 and 42,777.20

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Solution

The fourth proportional to 56,883.62, 78,520.92 and 42,777.20 is: 59,048.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,883.62 : 78,520.92 = 42,777.20 : x
  2. Step 2: Convert to fraction form
    56,883.62/78,520.92 = 42,777.20/x
  3. Step 3: Cross multiply
    56,883.62x = 78,520.92 × 42,777.20
  4. Step 4: Simplify right side
    56,883.62x = 3,358,905,099.02
  5. Step 5: Solve for x
    x = 3,358,905,099.02/56,883.62
  6. Step 6: Final answer
    x = 59,048.72

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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.