Home / 77,045.13-106,311.11-45,206.73

Finding the Fourth Proportional to 77,045.13, 106,311.11 and 45,206.73

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Solution

The fourth proportional to 77,045.13, 106,311.11 and 45,206.73 is: 62,378.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,045.13 : 106,311.11 = 45,206.73 : x
  2. Step 2: Convert to fraction form
    77,045.13/106,311.11 = 45,206.73/x
  3. Step 3: Cross multiply
    77,045.13x = 106,311.11 × 45,206.73
  4. Step 4: Simplify right side
    77,045.13x = 4,805,977,419.74
  5. Step 5: Solve for x
    x = 4,805,977,419.74/77,045.13
  6. Step 6: Final answer
    x = 62,378.73

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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.