Home / 70,209.06-96,888.51-38,378.09

Finding the Fourth Proportional to 70,209.06, 96,888.51 and 38,378.09

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Solution

The fourth proportional to 70,209.06, 96,888.51 and 38,378.09 is: 52,961.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,209.06 : 96,888.51 = 38,378.09 : x
  2. Step 2: Convert to fraction form
    70,209.06/96,888.51 = 38,378.09/x
  3. Step 3: Cross multiply
    70,209.06x = 96,888.51 × 38,378.09
  4. Step 4: Simplify right side
    70,209.06x = 3,718,395,956.75
  5. Step 5: Solve for x
    x = 3,718,395,956.75/70,209.06
  6. Step 6: Final answer
    x = 52,961.77

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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.