Home / 90,809.20-136,095.34-56,600.84

Finding the Fourth Proportional to 90,809.20, 136,095.34 and 56,600.84

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Solution

The fourth proportional to 90,809.20, 136,095.34 and 56,600.84 is: 84,827.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,809.20 : 136,095.34 = 56,600.84 : x
  2. Step 2: Convert to fraction form
    90,809.20/136,095.34 = 56,600.84/x
  3. Step 3: Cross multiply
    90,809.20x = 136,095.34 × 56,600.84
  4. Step 4: Simplify right side
    90,809.20x = 7,703,110,868.95
  5. Step 5: Solve for x
    x = 7,703,110,868.95/90,809.20
  6. Step 6: Final answer
    x = 84,827.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.