Home / 83,698.32-115,475.08-47,875.28

Finding the Fourth Proportional to 83,698.32, 115,475.08 and 47,875.28

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Solution

The fourth proportional to 83,698.32, 115,475.08 and 47,875.28 is: 66,051.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,698.32 : 115,475.08 = 47,875.28 : x
  2. Step 2: Convert to fraction form
    83,698.32/115,475.08 = 47,875.28/x
  3. Step 3: Cross multiply
    83,698.32x = 115,475.08 × 47,875.28
  4. Step 4: Simplify right side
    83,698.32x = 5,528,401,788.02
  5. Step 5: Solve for x
    x = 5,528,401,788.02/83,698.32
  6. Step 6: Final answer
    x = 66,051.53

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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.