Home / 63,990.81-88,285.55-38,835.45

Finding the Fourth Proportional to 63,990.81, 88,285.55 and 38,835.45

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Solution

The fourth proportional to 63,990.81, 88,285.55 and 38,835.45 is: 53,579.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,990.81 : 88,285.55 = 38,835.45 : x
  2. Step 2: Convert to fraction form
    63,990.81/88,285.55 = 38,835.45/x
  3. Step 3: Cross multiply
    63,990.81x = 88,285.55 × 38,835.45
  4. Step 4: Simplify right side
    63,990.81x = 3,428,608,868.57
  5. Step 5: Solve for x
    x = 3,428,608,868.57/63,990.81
  6. Step 6: Final answer
    x = 53,579.71

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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.