Home / 56,821.08-78,411.65-31,326.85

Finding the Fourth Proportional to 56,821.08, 78,411.65 and 31,326.85

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Solution

The fourth proportional to 56,821.08, 78,411.65 and 31,326.85 is: 43,230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,821.08 : 78,411.65 = 31,326.85 : x
  2. Step 2: Convert to fraction form
    56,821.08/78,411.65 = 31,326.85/x
  3. Step 3: Cross multiply
    56,821.08x = 78,411.65 × 31,326.85
  4. Step 4: Simplify right side
    56,821.08x = 2,456,389,997.80
  5. Step 5: Solve for x
    x = 2,456,389,997.80/56,821.08
  6. Step 6: Final answer
    x = 43,230.26

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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.