Home / 71,235.64-98,298.56-39,403.84

Finding the Fourth Proportional to 71,235.64, 98,298.56 and 39,403.84

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Solution

The fourth proportional to 71,235.64, 98,298.56 and 39,403.84 is: 54,373.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,235.64 : 98,298.56 = 39,403.84 : x
  2. Step 2: Convert to fraction form
    71,235.64/98,298.56 = 39,403.84/x
  3. Step 3: Cross multiply
    71,235.64x = 98,298.56 × 39,403.84
  4. Step 4: Simplify right side
    71,235.64x = 3,873,340,730.47
  5. Step 5: Solve for x
    x = 3,873,340,730.47/71,235.64
  6. Step 6: Final answer
    x = 54,373.64

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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.