Home / 86,774.40-130,204.80-49,363.20

Finding the Fourth Proportional to 86,774.40, 130,204.80 and 49,363.20

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Solution

The fourth proportional to 86,774.40, 130,204.80 and 49,363.20 is: 74,069.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,774.40 : 130,204.80 = 49,363.20 : x
  2. Step 2: Convert to fraction form
    86,774.40/130,204.80 = 49,363.20/x
  3. Step 3: Cross multiply
    86,774.40x = 130,204.80 × 49,363.20
  4. Step 4: Simplify right side
    86,774.40x = 6,427,325,583.36
  5. Step 5: Solve for x
    x = 6,427,325,583.36/86,774.40
  6. Step 6: Final answer
    x = 74,069.38

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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.