Home / 78,433.54-108,238.19-42,623.47

Finding the Fourth Proportional to 78,433.54, 108,238.19 and 42,623.47

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Solution

The fourth proportional to 78,433.54, 108,238.19 and 42,623.47 is: 58,820.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,433.54 : 108,238.19 = 42,623.47 : x
  2. Step 2: Convert to fraction form
    78,433.54/108,238.19 = 42,623.47/x
  3. Step 3: Cross multiply
    78,433.54x = 108,238.19 × 42,623.47
  4. Step 4: Simplify right side
    78,433.54x = 4,613,487,244.32
  5. Step 5: Solve for x
    x = 4,613,487,244.32/78,433.54
  6. Step 6: Final answer
    x = 58,820.34

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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.