Home / 86,581.26-119,484-47,818.95

Finding the Fourth Proportional to 86,581.26, 119,484 and 47,818.95

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Solution

The fourth proportional to 86,581.26, 119,484 and 47,818.95 is: 65,991.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,581.26 : 119,484 = 47,818.95 : x
  2. Step 2: Convert to fraction form
    86,581.26/119,484 = 47,818.95/x
  3. Step 3: Cross multiply
    86,581.26x = 119,484 × 47,818.95
  4. Step 4: Simplify right side
    86,581.26x = 5,713,599,421.80
  5. Step 5: Solve for x
    x = 5,713,599,421.80/86,581.26
  6. Step 6: Final answer
    x = 65,991.18

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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.