Home / 81,082.48-111,898.76-45,272.40

Finding the Fourth Proportional to 81,082.48, 111,898.76 and 45,272.40

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Solution

The fourth proportional to 81,082.48, 111,898.76 and 45,272.40 is: 62,478.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,082.48 : 111,898.76 = 45,272.40 : x
  2. Step 2: Convert to fraction form
    81,082.48/111,898.76 = 45,272.40/x
  3. Step 3: Cross multiply
    81,082.48x = 111,898.76 × 45,272.40
  4. Step 4: Simplify right side
    81,082.48x = 5,065,925,422.22
  5. Step 5: Solve for x
    x = 5,065,925,422.22/81,082.48
  6. Step 6: Final answer
    x = 62,478.67

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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.