Home / 66,222.08-91,373.28-42,330.56

Finding the Fourth Proportional to 66,222.08, 91,373.28 and 42,330.56

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Solution

The fourth proportional to 66,222.08, 91,373.28 and 42,330.56 is: 58,407.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,222.08 : 91,373.28 = 42,330.56 : x
  2. Step 2: Convert to fraction form
    66,222.08/91,373.28 = 42,330.56/x
  3. Step 3: Cross multiply
    66,222.08x = 91,373.28 × 42,330.56
  4. Step 4: Simplify right side
    66,222.08x = 3,867,882,111.44
  5. Step 5: Solve for x
    x = 3,867,882,111.44/66,222.08
  6. Step 6: Final answer
    x = 58,407.74

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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.