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Finding the Fourth Proportional to 85,659.98, 118,209.02 and 47,419.53

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Solution

The fourth proportional to 85,659.98, 118,209.02 and 47,419.53 is: 65,437.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,659.98 : 118,209.02 = 47,419.53 : x
  2. Step 2: Convert to fraction form
    85,659.98/118,209.02 = 47,419.53/x
  3. Step 3: Cross multiply
    85,659.98x = 118,209.02 × 47,419.53
  4. Step 4: Simplify right side
    85,659.98x = 5,605,415,933.06
  5. Step 5: Solve for x
    x = 5,605,415,933.06/85,659.98
  6. Step 6: Final answer
    x = 65,437.98

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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.