Home / 85,134.63-117,488.82-52,886.91

Finding the Fourth Proportional to 85,134.63, 117,488.82 and 52,886.91

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Solution

The fourth proportional to 85,134.63, 117,488.82 and 52,886.91 is: 72,985.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,134.63 : 117,488.82 = 52,886.91 : x
  2. Step 2: Convert to fraction form
    85,134.63/117,488.82 = 52,886.91/x
  3. Step 3: Cross multiply
    85,134.63x = 117,488.82 × 52,886.91
  4. Step 4: Simplify right side
    85,134.63x = 6,213,620,649.35
  5. Step 5: Solve for x
    x = 6,213,620,649.35/85,134.63
  6. Step 6: Final answer
    x = 72,985.82

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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.