Home / 86,510.05-129,764.28-27,345.76

Finding the Fourth Proportional to 86,510.05, 129,764.28 and 27,345.76

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Solution

The fourth proportional to 86,510.05, 129,764.28 and 27,345.76 is: 41,018.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,510.05 : 129,764.28 = 27,345.76 : x
  2. Step 2: Convert to fraction form
    86,510.05/129,764.28 = 27,345.76/x
  3. Step 3: Cross multiply
    86,510.05x = 129,764.28 × 27,345.76
  4. Step 4: Simplify right side
    86,510.05x = 3,548,502,857.45
  5. Step 5: Solve for x
    x = 3,548,502,857.45/86,510.05
  6. Step 6: Final answer
    x = 41,018.39

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1.5x scale

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.