Home / 91,973.80-126,921.90-54,260.20

Finding the Fourth Proportional to 91,973.80, 126,921.90 and 54,260.20

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Solution

The fourth proportional to 91,973.80, 126,921.90 and 54,260.20 is: 74,877.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,973.80 : 126,921.90 = 54,260.20 : x
  2. Step 2: Convert to fraction form
    91,973.80/126,921.90 = 54,260.20/x
  3. Step 3: Cross multiply
    91,973.80x = 126,921.90 × 54,260.20
  4. Step 4: Simplify right side
    91,973.80x = 6,886,807,678.38
  5. Step 5: Solve for x
    x = 6,886,807,678.38/91,973.80
  6. Step 6: Final answer
    x = 74,877.93

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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.