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Finding the Fourth Proportional to 85,754.88, 118,307.52 and 51,754.32

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Solution

The fourth proportional to 85,754.88, 118,307.52 and 51,754.32 is: 71,400.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,754.88 : 118,307.52 = 51,754.32 : x
  2. Step 2: Convert to fraction form
    85,754.88/118,307.52 = 51,754.32/x
  3. Step 3: Cross multiply
    85,754.88x = 118,307.52 × 51,754.32
  4. Step 4: Simplify right side
    85,754.88x = 6,122,925,248.49
  5. Step 5: Solve for x
    x = 6,122,925,248.49/85,754.88
  6. Step 6: Final answer
    x = 71,400.31

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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.