Home / 75,109.40-103,610.88-46,445.12

Finding the Fourth Proportional to 75,109.40, 103,610.88 and 46,445.12

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Solution

The fourth proportional to 75,109.40, 103,610.88 and 46,445.12 is: 64,069.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,109.40 : 103,610.88 = 46,445.12 : x
  2. Step 2: Convert to fraction form
    75,109.40/103,610.88 = 46,445.12/x
  3. Step 3: Cross multiply
    75,109.40x = 103,610.88 × 46,445.12
  4. Step 4: Simplify right side
    75,109.40x = 4,812,219,754.91
  5. Step 5: Solve for x
    x = 4,812,219,754.91/75,109.40
  6. Step 6: Final answer
    x = 64,069.47

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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.