Home / 91,777.40-126,518.76-64,872.44

Finding the Fourth Proportional to 91,777.40, 126,518.76 and 64,872.44

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Solution

The fourth proportional to 91,777.40, 126,518.76 and 64,872.44 is: 89,429.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,777.40 : 126,518.76 = 64,872.44 : x
  2. Step 2: Convert to fraction form
    91,777.40/126,518.76 = 64,872.44/x
  3. Step 3: Cross multiply
    91,777.40x = 126,518.76 × 64,872.44
  4. Step 4: Simplify right side
    91,777.40x = 8,207,580,666.97
  5. Step 5: Solve for x
    x = 8,207,580,666.97/91,777.40
  6. Step 6: Final answer
    x = 89,429.21

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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.