Home / 91,570.14-137,360.40-28,399.24

Finding the Fourth Proportional to 91,570.14, 137,360.40 and 28,399.24

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Solution

The fourth proportional to 91,570.14, 137,360.40 and 28,399.24 is: 42,600.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,570.14 : 137,360.40 = 28,399.24 : x
  2. Step 2: Convert to fraction form
    91,570.14/137,360.40 = 28,399.24/x
  3. Step 3: Cross multiply
    91,570.14x = 137,360.40 × 28,399.24
  4. Step 4: Simplify right side
    91,570.14x = 3,900,930,137.30
  5. Step 5: Solve for x
    x = 3,900,930,137.30/91,570.14
  6. Step 6: Final answer
    x = 42,600.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.