Home / 78,512.31-108,366.84-44,541.05

Finding the Fourth Proportional to 78,512.31, 108,366.84 and 44,541.05

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Solution

The fourth proportional to 78,512.31, 108,366.84 and 44,541.05 is: 61,477.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,512.31 : 108,366.84 = 44,541.05 : x
  2. Step 2: Convert to fraction form
    78,512.31/108,366.84 = 44,541.05/x
  3. Step 3: Cross multiply
    78,512.31x = 108,366.84 × 44,541.05
  4. Step 4: Simplify right side
    78,512.31x = 4,826,772,838.78
  5. Step 5: Solve for x
    x = 4,826,772,838.78/78,512.31
  6. Step 6: Final answer
    x = 61,477.91

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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.