Home / 72,345.18-108,025.32-63,840.72

Finding the Fourth Proportional to 72,345.18, 108,025.32 and 63,840.72

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Solution

The fourth proportional to 72,345.18, 108,025.32 and 63,840.72 is: 95,326.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,345.18 : 108,025.32 = 63,840.72 : x
  2. Step 2: Convert to fraction form
    72,345.18/108,025.32 = 63,840.72/x
  3. Step 3: Cross multiply
    72,345.18x = 108,025.32 × 63,840.72
  4. Step 4: Simplify right side
    72,345.18x = 6,896,414,207.03
  5. Step 5: Solve for x
    x = 6,896,414,207.03/72,345.18
  6. Step 6: Final answer
    x = 95,326.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.