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Finding the Fourth Proportional to 75,468.21, 104,252.39 and 71,482.40

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Solution

The fourth proportional to 75,468.21, 104,252.39 and 71,482.40 is: 98,746.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,468.21 : 104,252.39 = 71,482.40 : x
  2. Step 2: Convert to fraction form
    75,468.21/104,252.39 = 71,482.40/x
  3. Step 3: Cross multiply
    75,468.21x = 104,252.39 × 71,482.40
  4. Step 4: Simplify right side
    75,468.21x = 7,452,211,024.31
  5. Step 5: Solve for x
    x = 7,452,211,024.31/75,468.21
  6. Step 6: Final answer
    x = 98,746.36

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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.