Home / 66,785.28-92,158.20-38,492.88

Finding the Fourth Proportional to 66,785.28, 92,158.20 and 38,492.88

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Solution

The fourth proportional to 66,785.28, 92,158.20 and 38,492.88 is: 53,117.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,785.28 : 92,158.20 = 38,492.88 : x
  2. Step 2: Convert to fraction form
    66,785.28/92,158.20 = 38,492.88/x
  3. Step 3: Cross multiply
    66,785.28x = 92,158.20 × 38,492.88
  4. Step 4: Simplify right side
    66,785.28x = 3,547,434,533.62
  5. Step 5: Solve for x
    x = 3,547,434,533.62/66,785.28
  6. Step 6: Final answer
    x = 53,117.01

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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.