Home / 91,938.72-126,923.80-61,882.08

Finding the Fourth Proportional to 91,938.72, 126,923.80 and 61,882.08

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Solution

The fourth proportional to 91,938.72, 126,923.80 and 61,882.08 is: 85,429.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,938.72 : 126,923.80 = 61,882.08 : x
  2. Step 2: Convert to fraction form
    91,938.72/126,923.80 = 61,882.08/x
  3. Step 3: Cross multiply
    91,938.72x = 126,923.80 × 61,882.08
  4. Step 4: Simplify right side
    91,938.72x = 7,854,308,745.50
  5. Step 5: Solve for x
    x = 7,854,308,745.50/91,938.72
  6. Step 6: Final answer
    x = 85,429.82

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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.