Home / 56,879.42-78,490.05-31,385.99

Finding the Fourth Proportional to 56,879.42, 78,490.05 and 31,385.99

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Solution

The fourth proportional to 56,879.42, 78,490.05 and 31,385.99 is: 43,310.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,879.42 : 78,490.05 = 31,385.99 : x
  2. Step 2: Convert to fraction form
    56,879.42/78,490.05 = 31,385.99/x
  3. Step 3: Cross multiply
    56,879.42x = 78,490.05 × 31,385.99
  4. Step 4: Simplify right side
    56,879.42x = 2,463,487,531.95
  5. Step 5: Solve for x
    x = 2,463,487,531.95/56,879.42
  6. Step 6: Final answer
    x = 43,310.70

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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.