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Finding the Fourth Proportional to 80,237.88, 110,612.88 and 56,290.32

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Solution

The fourth proportional to 80,237.88, 110,612.88 and 56,290.32 is: 77,599.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,237.88 : 110,612.88 = 56,290.32 : x
  2. Step 2: Convert to fraction form
    80,237.88/110,612.88 = 56,290.32/x
  3. Step 3: Cross multiply
    80,237.88x = 110,612.88 × 56,290.32
  4. Step 4: Simplify right side
    80,237.88x = 6,226,434,411.32
  5. Step 5: Solve for x
    x = 6,226,434,411.32/80,237.88
  6. Step 6: Final answer
    x = 77,599.69

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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.