Home / 51,008.60-70,389.60-28,349.18

Finding the Fourth Proportional to 51,008.60, 70,389.60 and 28,349.18

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Solution

The fourth proportional to 51,008.60, 70,389.60 and 28,349.18 is: 39,120.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,008.60 : 70,389.60 = 28,349.18 : x
  2. Step 2: Convert to fraction form
    51,008.60/70,389.60 = 28,349.18/x
  3. Step 3: Cross multiply
    51,008.60x = 70,389.60 × 28,349.18
  4. Step 4: Simplify right side
    51,008.60x = 1,995,487,440.53
  5. Step 5: Solve for x
    x = 1,995,487,440.53/51,008.60
  6. Step 6: Final answer
    x = 39,120.61

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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.