Home / 91,326.80-126,030-50,490.76

Finding the Fourth Proportional to 91,326.80, 126,030 and 50,490.76

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Solution

The fourth proportional to 91,326.80, 126,030 and 50,490.76 is: 69,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,326.80 : 126,030 = 50,490.76 : x
  2. Step 2: Convert to fraction form
    91,326.80/126,030 = 50,490.76/x
  3. Step 3: Cross multiply
    91,326.80x = 126,030 × 50,490.76
  4. Step 4: Simplify right side
    91,326.80x = 6,363,350,482.80
  5. Step 5: Solve for x
    x = 6,363,350,482.80/91,326.80
  6. Step 6: Final answer
    x = 69,676.70

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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.