Home / 91,971.50-126,932.40-56,153.93

Finding the Fourth Proportional to 91,971.50, 126,932.40 and 56,153.93

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Solution

The fourth proportional to 91,971.50, 126,932.40 and 56,153.93 is: 77,499.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,971.50 : 126,932.40 = 56,153.93 : x
  2. Step 2: Convert to fraction form
    91,971.50/126,932.40 = 56,153.93/x
  3. Step 3: Cross multiply
    91,971.50x = 126,932.40 × 56,153.93
  4. Step 4: Simplify right side
    91,971.50x = 7,127,752,469.67
  5. Step 5: Solve for x
    x = 7,127,752,469.67/91,971.50
  6. Step 6: Final answer
    x = 77,499.58

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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.