Home / 50,972.16-70,342.40-28,615.68

Finding the Fourth Proportional to 50,972.16, 70,342.40 and 28,615.68

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Solution

The fourth proportional to 50,972.16, 70,342.40 and 28,615.68 is: 39,490.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,972.16 : 70,342.40 = 28,615.68 : x
  2. Step 2: Convert to fraction form
    50,972.16/70,342.40 = 28,615.68/x
  3. Step 3: Cross multiply
    50,972.16x = 70,342.40 × 28,615.68
  4. Step 4: Simplify right side
    50,972.16x = 2,012,895,608.83
  5. Step 5: Solve for x
    x = 2,012,895,608.83/50,972.16
  6. Step 6: Final answer
    x = 39,490.10

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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.