Home / 86,434.80-119,278.08-48,705.12

Finding the Fourth Proportional to 86,434.80, 119,278.08 and 48,705.12

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Solution

The fourth proportional to 86,434.80, 119,278.08 and 48,705.12 is: 67,211.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,434.80 : 119,278.08 = 48,705.12 : x
  2. Step 2: Convert to fraction form
    86,434.80/119,278.08 = 48,705.12/x
  3. Step 3: Cross multiply
    86,434.80x = 119,278.08 × 48,705.12
  4. Step 4: Simplify right side
    86,434.80x = 5,809,453,199.77
  5. Step 5: Solve for x
    x = 5,809,453,199.77/86,434.80
  6. Step 6: Final answer
    x = 67,211.97

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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.