Home / 47,150.78-65,066.85-28,030.59

Finding the Fourth Proportional to 47,150.78, 65,066.85 and 28,030.59

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Solution

The fourth proportional to 47,150.78, 65,066.85 and 28,030.59 is: 38,681.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,150.78 : 65,066.85 = 28,030.59 : x
  2. Step 2: Convert to fraction form
    47,150.78/65,066.85 = 28,030.59/x
  3. Step 3: Cross multiply
    47,150.78x = 65,066.85 × 28,030.59
  4. Step 4: Simplify right side
    47,150.78x = 1,823,862,194.94
  5. Step 5: Solve for x
    x = 1,823,862,194.94/47,150.78
  6. Step 6: Final answer
    x = 38,681.49

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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.