Home / 66,931.95-92,370.78-38,255.85

Finding the Fourth Proportional to 66,931.95, 92,370.78 and 38,255.85

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Solution

The fourth proportional to 66,931.95, 92,370.78 and 38,255.85 is: 52,795.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,931.95 : 92,370.78 = 38,255.85 : x
  2. Step 2: Convert to fraction form
    66,931.95/92,370.78 = 38,255.85/x
  3. Step 3: Cross multiply
    66,931.95x = 92,370.78 × 38,255.85
  4. Step 4: Simplify right side
    66,931.95x = 3,533,722,704.06
  5. Step 5: Solve for x
    x = 3,533,722,704.06/66,931.95
  6. Step 6: Final answer
    x = 52,795.75

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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.