Home / 79,431.28-109,626.67-47,603.14

Finding the Fourth Proportional to 79,431.28, 109,626.67 and 47,603.14

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Solution

The fourth proportional to 79,431.28, 109,626.67 and 47,603.14 is: 65,699.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,431.28 : 109,626.67 = 47,603.14 : x
  2. Step 2: Convert to fraction form
    79,431.28/109,626.67 = 47,603.14/x
  3. Step 3: Cross multiply
    79,431.28x = 109,626.67 × 47,603.14
  4. Step 4: Simplify right side
    79,431.28x = 5,218,573,854.06
  5. Step 5: Solve for x
    x = 5,218,573,854.06/79,431.28
  6. Step 6: Final answer
    x = 65,699.23

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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.