Home / 86,567.83-129,859.14-30,403.05

Finding the Fourth Proportional to 86,567.83, 129,859.14 and 30,403.05

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Solution

The fourth proportional to 86,567.83, 129,859.14 and 30,403.05 is: 45,607.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,567.83 : 129,859.14 = 30,403.05 : x
  2. Step 2: Convert to fraction form
    86,567.83/129,859.14 = 30,403.05/x
  3. Step 3: Cross multiply
    86,567.83x = 129,859.14 × 30,403.05
  4. Step 4: Simplify right side
    86,567.83x = 3,948,113,553.42
  5. Step 5: Solve for x
    x = 3,948,113,553.42/86,567.83
  6. Step 6: Final answer
    x = 45,607.17

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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.