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Finding the Fourth Proportional to 84,759.40, 117,011.48 and 59,720.68

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Solution

The fourth proportional to 84,759.40, 117,011.48 and 59,720.68 is: 82,445.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,759.40 : 117,011.48 = 59,720.68 : x
  2. Step 2: Convert to fraction form
    84,759.40/117,011.48 = 59,720.68/x
  3. Step 3: Cross multiply
    84,759.40x = 117,011.48 × 59,720.68
  4. Step 4: Simplify right side
    84,759.40x = 6,988,005,153.41
  5. Step 5: Solve for x
    x = 6,988,005,153.41/84,759.40
  6. Step 6: Final answer
    x = 82,445.19

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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.