Home / 75,970.20-104,838.78-42,436.20

Finding the Fourth Proportional to 75,970.20, 104,838.78 and 42,436.20

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Solution

The fourth proportional to 75,970.20, 104,838.78 and 42,436.20 is: 58,561.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,970.20 : 104,838.78 = 42,436.20 : x
  2. Step 2: Convert to fraction form
    75,970.20/104,838.78 = 42,436.20/x
  3. Step 3: Cross multiply
    75,970.20x = 104,838.78 × 42,436.20
  4. Step 4: Simplify right side
    75,970.20x = 4,448,959,435.84
  5. Step 5: Solve for x
    x = 4,448,959,435.84/75,970.20
  6. Step 6: Final answer
    x = 58,561.90

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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.