Home / 54,815.04-75,648.16-30,933

Finding the Fourth Proportional to 54,815.04, 75,648.16 and 30,933

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Solution

The fourth proportional to 54,815.04, 75,648.16 and 30,933 is: 42,689.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,815.04 : 75,648.16 = 30,933 : x
  2. Step 2: Convert to fraction form
    54,815.04/75,648.16 = 30,933/x
  3. Step 3: Cross multiply
    54,815.04x = 75,648.16 × 30,933
  4. Step 4: Simplify right side
    54,815.04x = 2,340,024,533.28
  5. Step 5: Solve for x
    x = 2,340,024,533.28/54,815.04
  6. Step 6: Final answer
    x = 42,689.46

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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.