Home / 54,820.16-75,655.32-30,938.12

Finding the Fourth Proportional to 54,820.16, 75,655.32 and 30,938.12

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Solution

The fourth proportional to 54,820.16, 75,655.32 and 30,938.12 is: 42,696.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,820.16 : 75,655.32 = 30,938.12 : x
  2. Step 2: Convert to fraction form
    54,820.16/75,655.32 = 30,938.12/x
  3. Step 3: Cross multiply
    54,820.16x = 75,655.32 × 30,938.12
  4. Step 4: Simplify right side
    54,820.16x = 2,340,633,368.80
  5. Step 5: Solve for x
    x = 2,340,633,368.80/54,820.16
  6. Step 6: Final answer
    x = 42,696.58

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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.