Home / 55,612.38-83,430.88-30,639.57

Finding the Fourth Proportional to 55,612.38, 83,430.88 and 30,639.57

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Solution

The fourth proportional to 55,612.38, 83,430.88 and 30,639.57 is: 45,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,612.38 : 83,430.88 = 30,639.57 : x
  2. Step 2: Convert to fraction form
    55,612.38/83,430.88 = 30,639.57/x
  3. Step 3: Cross multiply
    55,612.38x = 83,430.88 × 30,639.57
  4. Step 4: Simplify right side
    55,612.38x = 2,556,286,134.72
  5. Step 5: Solve for x
    x = 2,556,286,134.72/55,612.38
  6. Step 6: Final answer
    x = 45,966.13

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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.