Home / 54,981.36-75,875.99-31,107.56

Finding the Fourth Proportional to 54,981.36, 75,875.99 and 31,107.56

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Solution

The fourth proportional to 54,981.36, 75,875.99 and 31,107.56 is: 42,929.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,981.36 : 75,875.99 = 31,107.56 : x
  2. Step 2: Convert to fraction form
    54,981.36/75,875.99 = 31,107.56/x
  3. Step 3: Cross multiply
    54,981.36x = 75,875.99 × 31,107.56
  4. Step 4: Simplify right side
    54,981.36x = 2,360,316,376.57
  5. Step 5: Solve for x
    x = 2,360,316,376.57/54,981.36
  6. Step 6: Final answer
    x = 42,929.39

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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.