Home / 83,700.24-115,488.36-49,720.19

Finding the Fourth Proportional to 83,700.24, 115,488.36 and 49,720.19

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Solution

The fourth proportional to 83,700.24, 115,488.36 and 49,720.19 is: 68,603.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,700.24 : 115,488.36 = 49,720.19 : x
  2. Step 2: Convert to fraction form
    83,700.24/115,488.36 = 49,720.19/x
  3. Step 3: Cross multiply
    83,700.24x = 115,488.36 × 49,720.19
  4. Step 4: Simplify right side
    83,700.24x = 5,742,102,624.55
  5. Step 5: Solve for x
    x = 5,742,102,624.55/83,700.24
  6. Step 6: Final answer
    x = 68,603.18

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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.