Home / 51,351.47-70,865.04-28,690.40

Finding the Fourth Proportional to 51,351.47, 70,865.04 and 28,690.40

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Solution

The fourth proportional to 51,351.47, 70,865.04 and 28,690.40 is: 39,592.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,351.47 : 70,865.04 = 28,690.40 : x
  2. Step 2: Convert to fraction form
    51,351.47/70,865.04 = 28,690.40/x
  3. Step 3: Cross multiply
    51,351.47x = 70,865.04 × 28,690.40
  4. Step 4: Simplify right side
    51,351.47x = 2,033,146,343.62
  5. Step 5: Solve for x
    x = 2,033,146,343.62/51,351.47
  6. Step 6: Final answer
    x = 39,592.76

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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.