Home / 75,427.70-113,141.55-74,261.30

Finding the Fourth Proportional to 75,427.70, 113,141.55 and 74,261.30

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Solution

The fourth proportional to 75,427.70, 113,141.55 and 74,261.30 is: 111,391.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,427.70 : 113,141.55 = 74,261.30 : x
  2. Step 2: Convert to fraction form
    75,427.70/113,141.55 = 74,261.30/x
  3. Step 3: Cross multiply
    75,427.70x = 113,141.55 × 74,261.30
  4. Step 4: Simplify right side
    75,427.70x = 8,402,038,587.02
  5. Step 5: Solve for x
    x = 8,402,038,587.02/75,427.70
  6. Step 6: Final answer
    x = 111,391.95

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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.