Home / 91,390.26-126,123.40-51,101.52

Finding the Fourth Proportional to 91,390.26, 126,123.40 and 51,101.52

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Solution

The fourth proportional to 91,390.26, 126,123.40 and 51,101.52 is: 70,522.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,390.26 : 126,123.40 = 51,101.52 : x
  2. Step 2: Convert to fraction form
    91,390.26/126,123.40 = 51,101.52/x
  3. Step 3: Cross multiply
    91,390.26x = 126,123.40 × 51,101.52
  4. Step 4: Simplify right side
    91,390.26x = 6,445,097,447.57
  5. Step 5: Solve for x
    x = 6,445,097,447.57/91,390.26
  6. Step 6: Final answer
    x = 70,522.80

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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.