Home / 59,639.13-82,278.39-38,430.75

Finding the Fourth Proportional to 59,639.13, 82,278.39 and 38,430.75

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Solution

The fourth proportional to 59,639.13, 82,278.39 and 38,430.75 is: 53,019.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,639.13 : 82,278.39 = 38,430.75 : x
  2. Step 2: Convert to fraction form
    59,639.13/82,278.39 = 38,430.75/x
  3. Step 3: Cross multiply
    59,639.13x = 82,278.39 × 38,430.75
  4. Step 4: Simplify right side
    59,639.13x = 3,162,020,236.49
  5. Step 5: Solve for x
    x = 3,162,020,236.49/59,639.13
  6. Step 6: Final answer
    x = 53,019.22

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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.