Home / 86,503.06-119,378.37-48,776.50

Finding the Fourth Proportional to 86,503.06, 119,378.37 and 48,776.50

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Solution

The fourth proportional to 86,503.06, 119,378.37 and 48,776.50 is: 67,313.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,503.06 : 119,378.37 = 48,776.50 : x
  2. Step 2: Convert to fraction form
    86,503.06/119,378.37 = 48,776.50/x
  3. Step 3: Cross multiply
    86,503.06x = 119,378.37 × 48,776.50
  4. Step 4: Simplify right side
    86,503.06x = 5,822,859,064.31
  5. Step 5: Solve for x
    x = 5,822,859,064.31/86,503.06
  6. Step 6: Final answer
    x = 67,313.91

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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.