Home / 83,929.64-115,815.84-48,111.44

Finding the Fourth Proportional to 83,929.64, 115,815.84 and 48,111.44

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Solution

The fourth proportional to 83,929.64, 115,815.84 and 48,111.44 is: 66,389.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,929.64 : 115,815.84 = 48,111.44 : x
  2. Step 2: Convert to fraction form
    83,929.64/115,815.84 = 48,111.44/x
  3. Step 3: Cross multiply
    83,929.64x = 115,815.84 × 48,111.44
  4. Step 4: Simplify right side
    83,929.64x = 5,572,066,837.21
  5. Step 5: Solve for x
    x = 5,572,066,837.21/83,929.64
  6. Step 6: Final answer
    x = 66,389.74

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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.