Home / 78,736.66-108,658.64-48,541.93

Finding the Fourth Proportional to 78,736.66, 108,658.64 and 48,541.93

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Solution

The fourth proportional to 78,736.66, 108,658.64 and 48,541.93 is: 66,989.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,736.66 : 108,658.64 = 48,541.93 : x
  2. Step 2: Convert to fraction form
    78,736.66/108,658.64 = 48,541.93/x
  3. Step 3: Cross multiply
    78,736.66x = 108,658.64 × 48,541.93
  4. Step 4: Simplify right side
    78,736.66x = 5,274,499,946.48
  5. Step 5: Solve for x
    x = 5,274,499,946.48/78,736.66
  6. Step 6: Final answer
    x = 66,989.13

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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.