Home / 86,506.32-119,378.52-48,780.30

Finding the Fourth Proportional to 86,506.32, 119,378.52 and 48,780.30

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Solution

The fourth proportional to 86,506.32, 119,378.52 and 48,780.30 is: 67,316.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,506.32 : 119,378.52 = 48,780.30 : x
  2. Step 2: Convert to fraction form
    86,506.32/119,378.52 = 48,780.30/x
  3. Step 3: Cross multiply
    86,506.32x = 119,378.52 × 48,780.30
  4. Step 4: Simplify right side
    86,506.32x = 5,823,320,019.16
  5. Step 5: Solve for x
    x = 5,823,320,019.16/86,506.32
  6. Step 6: Final answer
    x = 67,316.70

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1.5x scale

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.