Home / 91,412.74-126,149.87-51,127.19

Finding the Fourth Proportional to 91,412.74, 126,149.87 and 51,127.19

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Solution

The fourth proportional to 91,412.74, 126,149.87 and 51,127.19 is: 70,555.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,412.74 : 126,149.87 = 51,127.19 : x
  2. Step 2: Convert to fraction form
    91,412.74/126,149.87 = 51,127.19/x
  3. Step 3: Cross multiply
    91,412.74x = 126,149.87 × 51,127.19
  4. Step 4: Simplify right side
    91,412.74x = 6,449,688,371.97
  5. Step 5: Solve for x
    x = 6,449,688,371.97/91,412.74
  6. Step 6: Final answer
    x = 70,555.68

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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.