Home / 75,860.18-104,406.16-55,685.10

Finding the Fourth Proportional to 75,860.18, 104,406.16 and 55,685.10

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Solution

The fourth proportional to 75,860.18, 104,406.16 and 55,685.10 is: 76,639.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,860.18 : 104,406.16 = 55,685.10 : x
  2. Step 2: Convert to fraction form
    75,860.18/104,406.16 = 55,685.10/x
  3. Step 3: Cross multiply
    75,860.18x = 104,406.16 × 55,685.10
  4. Step 4: Simplify right side
    75,860.18x = 5,813,867,721.23
  5. Step 5: Solve for x
    x = 5,813,867,721.23/75,860.18
  6. Step 6: Final answer
    x = 76,639.26

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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.