Home / 91,455.47-126,213.45-51,166.83

Finding the Fourth Proportional to 91,455.47, 126,213.45 and 51,166.83

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Solution

The fourth proportional to 91,455.47, 126,213.45 and 51,166.83 is: 70,612.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,455.47 : 126,213.45 = 51,166.83 : x
  2. Step 2: Convert to fraction form
    91,455.47/126,213.45 = 51,166.83/x
  3. Step 3: Cross multiply
    91,455.47x = 126,213.45 × 51,166.83
  4. Step 4: Simplify right side
    91,455.47x = 6,457,942,139.86
  5. Step 5: Solve for x
    x = 6,457,942,139.86/91,455.47
  6. Step 6: Final answer
    x = 70,612.97

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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.