Home / 75,609.28-104,312.70-75,492.64

Finding the Fourth Proportional to 75,609.28, 104,312.70 and 75,492.64

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Solution

The fourth proportional to 75,609.28, 104,312.70 and 75,492.64 is: 104,151.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,609.28 : 104,312.70 = 75,492.64 : x
  2. Step 2: Convert to fraction form
    75,609.28/104,312.70 = 75,492.64/x
  3. Step 3: Cross multiply
    75,609.28x = 104,312.70 × 75,492.64
  4. Step 4: Simplify right side
    75,609.28x = 7,874,841,108.53
  5. Step 5: Solve for x
    x = 7,874,841,108.53/75,609.28
  6. Step 6: Final answer
    x = 104,151.78

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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.