Home / 51,386.72-70,888.20-40,035.92

Finding the Fourth Proportional to 51,386.72, 70,888.20 and 40,035.92

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Solution

The fourth proportional to 51,386.72, 70,888.20 and 40,035.92 is: 55,229.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,386.72 : 70,888.20 = 40,035.92 : x
  2. Step 2: Convert to fraction form
    51,386.72/70,888.20 = 40,035.92/x
  3. Step 3: Cross multiply
    51,386.72x = 70,888.20 × 40,035.92
  4. Step 4: Simplify right side
    51,386.72x = 2,838,074,304.14
  5. Step 5: Solve for x
    x = 2,838,074,304.14/51,386.72
  6. Step 6: Final answer
    x = 55,229.72

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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.