Home / 53,977.68-74,489-30,103.76

Finding the Fourth Proportional to 53,977.68, 74,489 and 30,103.76

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Solution

The fourth proportional to 53,977.68, 74,489 and 30,103.76 is: 41,543.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,977.68 : 74,489 = 30,103.76 : x
  2. Step 2: Convert to fraction form
    53,977.68/74,489 = 30,103.76/x
  3. Step 3: Cross multiply
    53,977.68x = 74,489 × 30,103.76
  4. Step 4: Simplify right side
    53,977.68x = 2,242,398,978.64
  5. Step 5: Solve for x
    x = 2,242,398,978.64/53,977.68
  6. Step 6: Final answer
    x = 41,543.08

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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.