Home / 56,520.93-77,999.85-31,029.69

Finding the Fourth Proportional to 56,520.93, 77,999.85 and 31,029.69

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Solution

The fourth proportional to 56,520.93, 77,999.85 and 31,029.69 is: 42,821.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,520.93 : 77,999.85 = 31,029.69 : x
  2. Step 2: Convert to fraction form
    56,520.93/77,999.85 = 31,029.69/x
  3. Step 3: Cross multiply
    56,520.93x = 77,999.85 × 31,029.69
  4. Step 4: Simplify right side
    56,520.93x = 2,420,311,165.55
  5. Step 5: Solve for x
    x = 2,420,311,165.55/56,520.93
  6. Step 6: Final answer
    x = 42,821.50

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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.