Home / 86,383.16-129,282.12-53,124.32

Finding the Fourth Proportional to 86,383.16, 129,282.12 and 53,124.32

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Solution

The fourth proportional to 86,383.16, 129,282.12 and 53,124.32 is: 79,506.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,383.16 : 129,282.12 = 53,124.32 : x
  2. Step 2: Convert to fraction form
    86,383.16/129,282.12 = 53,124.32/x
  3. Step 3: Cross multiply
    86,383.16x = 129,282.12 × 53,124.32
  4. Step 4: Simplify right side
    86,383.16x = 6,868,024,713.16
  5. Step 5: Solve for x
    x = 6,868,024,713.16/86,383.16
  6. Step 6: Final answer
    x = 79,506.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.