Home / 60,438.40-83,416.92-38,620.72

Finding the Fourth Proportional to 60,438.40, 83,416.92 and 38,620.72

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Solution

The fourth proportional to 60,438.40, 83,416.92 and 38,620.72 is: 53,304.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,438.40 : 83,416.92 = 38,620.72 : x
  2. Step 2: Convert to fraction form
    60,438.40/83,416.92 = 38,620.72/x
  3. Step 3: Cross multiply
    60,438.40x = 83,416.92 × 38,620.72
  4. Step 4: Simplify right side
    60,438.40x = 3,221,621,510.58
  5. Step 5: Solve for x
    x = 3,221,621,510.58/60,438.40
  6. Step 6: Final answer
    x = 53,304.22

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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.