Home / 64,265.28-88,689.48-40,383.12

Finding the Fourth Proportional to 64,265.28, 88,689.48 and 40,383.12

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Solution

The fourth proportional to 64,265.28, 88,689.48 and 40,383.12 is: 55,730.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,265.28 : 88,689.48 = 40,383.12 : x
  2. Step 2: Convert to fraction form
    64,265.28/88,689.48 = 40,383.12/x
  3. Step 3: Cross multiply
    64,265.28x = 88,689.48 × 40,383.12
  4. Step 4: Simplify right side
    64,265.28x = 3,581,557,913.58
  5. Step 5: Solve for x
    x = 3,581,557,913.58/64,265.28
  6. Step 6: Final answer
    x = 55,730.84

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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.