Home / 86,513.40-119,368.05-48,780.36

Finding the Fourth Proportional to 86,513.40, 119,368.05 and 48,780.36

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Solution

The fourth proportional to 86,513.40, 119,368.05 and 48,780.36 is: 67,305.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,513.40 : 119,368.05 = 48,780.36 : x
  2. Step 2: Convert to fraction form
    86,513.40/119,368.05 = 48,780.36/x
  3. Step 3: Cross multiply
    86,513.40x = 119,368.05 × 48,780.36
  4. Step 4: Simplify right side
    86,513.40x = 5,822,816,451.50
  5. Step 5: Solve for x
    x = 5,822,816,451.50/86,513.40
  6. Step 6: Final answer
    x = 67,305.37

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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.