Home / 84,865.52-117,111.30-47,142.20

Finding the Fourth Proportional to 84,865.52, 117,111.30 and 47,142.20

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Solution

The fourth proportional to 84,865.52, 117,111.30 and 47,142.20 is: 65,054.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,865.52 : 117,111.30 = 47,142.20 : x
  2. Step 2: Convert to fraction form
    84,865.52/117,111.30 = 47,142.20/x
  3. Step 3: Cross multiply
    84,865.52x = 117,111.30 × 47,142.20
  4. Step 4: Simplify right side
    84,865.52x = 5,520,884,326.86
  5. Step 5: Solve for x
    x = 5,520,884,326.86/84,865.52
  6. Step 6: Final answer
    x = 65,054.50

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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.