Home / 91,707.90-126,558.20-55,404.30

Finding the Fourth Proportional to 91,707.90, 126,558.20 and 55,404.30

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Solution

The fourth proportional to 91,707.90, 126,558.20 and 55,404.30 is: 76,458.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,707.90 : 126,558.20 = 55,404.30 : x
  2. Step 2: Convert to fraction form
    91,707.90/126,558.20 = 55,404.30/x
  3. Step 3: Cross multiply
    91,707.90x = 126,558.20 × 55,404.30
  4. Step 4: Simplify right side
    91,707.90x = 7,011,868,203.24
  5. Step 5: Solve for x
    x = 7,011,868,203.24/91,707.90
  6. Step 6: Final answer
    x = 76,458.72

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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.