Home / 91,371.08-126,130.95-55,572.59

Finding the Fourth Proportional to 91,371.08, 126,130.95 and 55,572.59

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Solution

The fourth proportional to 91,371.08, 126,130.95 and 55,572.59 is: 76,713.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,371.08 : 126,130.95 = 55,572.59 : x
  2. Step 2: Convert to fraction form
    91,371.08/126,130.95 = 55,572.59/x
  3. Step 3: Cross multiply
    91,371.08x = 126,130.95 × 55,572.59
  4. Step 4: Simplify right side
    91,371.08x = 7,009,423,570.66
  5. Step 5: Solve for x
    x = 7,009,423,570.66/91,371.08
  6. Step 6: Final answer
    x = 76,713.81

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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.