Home / 66,931.38-92,368.08-38,255.76

Finding the Fourth Proportional to 66,931.38, 92,368.08 and 38,255.76

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Solution

The fourth proportional to 66,931.38, 92,368.08 and 38,255.76 is: 52,794.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,931.38 : 92,368.08 = 38,255.76 : x
  2. Step 2: Convert to fraction form
    66,931.38/92,368.08 = 38,255.76/x
  3. Step 3: Cross multiply
    66,931.38x = 92,368.08 × 38,255.76
  4. Step 4: Simplify right side
    66,931.38x = 3,533,611,100.14
  5. Step 5: Solve for x
    x = 3,533,611,100.14/66,931.38
  6. Step 6: Final answer
    x = 52,794.54

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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.