Home / 51,143.60-70,457.16-48,781.52

Finding the Fourth Proportional to 51,143.60, 70,457.16 and 48,781.52

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Solution

The fourth proportional to 51,143.60, 70,457.16 and 48,781.52 is: 67,203.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,143.60 : 70,457.16 = 48,781.52 : x
  2. Step 2: Convert to fraction form
    51,143.60/70,457.16 = 48,781.52/x
  3. Step 3: Cross multiply
    51,143.60x = 70,457.16 × 48,781.52
  4. Step 4: Simplify right side
    51,143.60x = 3,437,007,359.68
  5. Step 5: Solve for x
    x = 3,437,007,359.68/51,143.60
  6. Step 6: Final answer
    x = 67,203.08

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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.