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Finding the Fourth Proportional to 81,595.98, 112,512.51 and 56,401.74

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Solution

The fourth proportional to 81,595.98, 112,512.51 and 56,401.74 is: 77,772.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,595.98 : 112,512.51 = 56,401.74 : x
  2. Step 2: Convert to fraction form
    81,595.98/112,512.51 = 56,401.74/x
  3. Step 3: Cross multiply
    81,595.98x = 112,512.51 × 56,401.74
  4. Step 4: Simplify right side
    81,595.98x = 6,345,901,335.77
  5. Step 5: Solve for x
    x = 6,345,901,335.77/81,595.98
  6. Step 6: Final answer
    x = 77,772.23

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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.