Home / 90,725.99-136,070.70-56,976.93

Finding the Fourth Proportional to 90,725.99, 136,070.70 and 56,976.93

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Solution

The fourth proportional to 90,725.99, 136,070.70 and 56,976.93 is: 85,453.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,725.99 : 136,070.70 = 56,976.93 : x
  2. Step 2: Convert to fraction form
    90,725.99/136,070.70 = 56,976.93/x
  3. Step 3: Cross multiply
    90,725.99x = 136,070.70 × 56,976.93
  4. Step 4: Simplify right side
    90,725.99x = 7,752,890,748.95
  5. Step 5: Solve for x
    x = 7,752,890,748.95/90,725.99
  6. Step 6: Final answer
    x = 85,453.92

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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.