Home / 54,641.45-75,407.52-30,442.40

Finding the Fourth Proportional to 54,641.45, 75,407.52 and 30,442.40

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Solution

The fourth proportional to 54,641.45, 75,407.52 and 30,442.40 is: 42,011.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,641.45 : 75,407.52 = 30,442.40 : x
  2. Step 2: Convert to fraction form
    54,641.45/75,407.52 = 30,442.40/x
  3. Step 3: Cross multiply
    54,641.45x = 75,407.52 × 30,442.40
  4. Step 4: Simplify right side
    54,641.45x = 2,295,585,509.81
  5. Step 5: Solve for x
    x = 2,295,585,509.81/54,641.45
  6. Step 6: Final answer
    x = 42,011.80

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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.