Home / 91,454.31-126,199.76-51,164.91

Finding the Fourth Proportional to 91,454.31, 126,199.76 and 51,164.91

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Solution

The fourth proportional to 91,454.31, 126,199.76 and 51,164.91 is: 70,603.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,454.31 : 126,199.76 = 51,164.91 : x
  2. Step 2: Convert to fraction form
    91,454.31/126,199.76 = 51,164.91/x
  3. Step 3: Cross multiply
    91,454.31x = 126,199.76 × 51,164.91
  4. Step 4: Simplify right side
    91,454.31x = 6,456,999,106.60
  5. Step 5: Solve for x
    x = 6,456,999,106.60/91,454.31
  6. Step 6: Final answer
    x = 70,603.55

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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.