Home / 91,779.66-126,655.11-51,492.56

Finding the Fourth Proportional to 91,779.66, 126,655.11 and 51,492.56

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Solution

The fourth proportional to 91,779.66, 126,655.11 and 51,492.56 is: 71,059.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,779.66 : 126,655.11 = 51,492.56 : x
  2. Step 2: Convert to fraction form
    91,779.66/126,655.11 = 51,492.56/x
  3. Step 3: Cross multiply
    91,779.66x = 126,655.11 × 51,492.56
  4. Step 4: Simplify right side
    91,779.66x = 6,521,795,217.71
  5. Step 5: Solve for x
    x = 6,521,795,217.71/91,779.66
  6. Step 6: Final answer
    x = 71,059.27

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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.