Home / 75,674.04-104,429.16-42,140.04

Finding the Fourth Proportional to 75,674.04, 104,429.16 and 42,140.04

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Solution

The fourth proportional to 75,674.04, 104,429.16 and 42,140.04 is: 58,152.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,674.04 : 104,429.16 = 42,140.04 : x
  2. Step 2: Convert to fraction form
    75,674.04/104,429.16 = 42,140.04/x
  3. Step 3: Cross multiply
    75,674.04x = 104,429.16 × 42,140.04
  4. Step 4: Simplify right side
    75,674.04x = 4,400,648,979.57
  5. Step 5: Solve for x
    x = 4,400,648,979.57/75,674.04
  6. Step 6: Final answer
    x = 58,152.69

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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.