Home / 86,505.19-129,776.59-26,533.90

Finding the Fourth Proportional to 86,505.19, 129,776.59 and 26,533.90

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Solution

The fourth proportional to 86,505.19, 129,776.59 and 26,533.90 is: 39,806.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,505.19 : 129,776.59 = 26,533.90 : x
  2. Step 2: Convert to fraction form
    86,505.19/129,776.59 = 26,533.90/x
  3. Step 3: Cross multiply
    86,505.19x = 129,776.59 × 26,533.90
  4. Step 4: Simplify right side
    86,505.19x = 3,443,478,995.07
  5. Step 5: Solve for x
    x = 3,443,478,995.07/86,505.19
  6. Step 6: Final answer
    x = 39,806.62

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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.