Home / 84,322.16-126,478.68-42,768.08

Finding the Fourth Proportional to 84,322.16, 126,478.68 and 42,768.08

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Solution

The fourth proportional to 84,322.16, 126,478.68 and 42,768.08 is: 64,149.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,322.16 : 126,478.68 = 42,768.08 : x
  2. Step 2: Convert to fraction form
    84,322.16/126,478.68 = 42,768.08/x
  3. Step 3: Cross multiply
    84,322.16x = 126,478.68 × 42,768.08
  4. Step 4: Simplify right side
    84,322.16x = 5,409,250,304.53
  5. Step 5: Solve for x
    x = 5,409,250,304.53/84,322.16
  6. Step 6: Final answer
    x = 64,149.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.