Home / 86,945.40-130,461.30-34,356.60

Finding the Fourth Proportional to 86,945.40, 130,461.30 and 34,356.60

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Solution

The fourth proportional to 86,945.40, 130,461.30 and 34,356.60 is: 51,551.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,945.40 : 130,461.30 = 34,356.60 : x
  2. Step 2: Convert to fraction form
    86,945.40/130,461.30 = 34,356.60/x
  3. Step 3: Cross multiply
    86,945.40x = 130,461.30 × 34,356.60
  4. Step 4: Simplify right side
    86,945.40x = 4,482,206,699.58
  5. Step 5: Solve for x
    x = 4,482,206,699.58/86,945.40
  6. Step 6: Final answer
    x = 51,551.97

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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.