Home / 75,612.40-104,356.56-45,414.32

Finding the Fourth Proportional to 75,612.40, 104,356.56 and 45,414.32

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Solution

The fourth proportional to 75,612.40, 104,356.56 and 45,414.32 is: 62,678.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,612.40 : 104,356.56 = 45,414.32 : x
  2. Step 2: Convert to fraction form
    75,612.40/104,356.56 = 45,414.32/x
  3. Step 3: Cross multiply
    75,612.40x = 104,356.56 × 45,414.32
  4. Step 4: Simplify right side
    75,612.40x = 4,739,282,209.94
  5. Step 5: Solve for x
    x = 4,739,282,209.94/75,612.40
  6. Step 6: Final answer
    x = 62,678.64

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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.