Home / 75,864.16-104,686.32-42,329.44

Finding the Fourth Proportional to 75,864.16, 104,686.32 and 42,329.44

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Solution

The fourth proportional to 75,864.16, 104,686.32 and 42,329.44 is: 58,411.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,864.16 : 104,686.32 = 42,329.44 : x
  2. Step 2: Convert to fraction form
    75,864.16/104,686.32 = 42,329.44/x
  3. Step 3: Cross multiply
    75,864.16x = 104,686.32 × 42,329.44
  4. Step 4: Simplify right side
    75,864.16x = 4,431,313,301.26
  5. Step 5: Solve for x
    x = 4,431,313,301.26/75,864.16
  6. Step 6: Final answer
    x = 58,411.16

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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.