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Finding the Fourth Proportional to 84,995.88, 117,342.36 and 64,693.32

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Solution

The fourth proportional to 84,995.88, 117,342.36 and 64,693.32 is: 89,313.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,995.88 : 117,342.36 = 64,693.32 : x
  2. Step 2: Convert to fraction form
    84,995.88/117,342.36 = 64,693.32/x
  3. Step 3: Cross multiply
    84,995.88x = 117,342.36 × 64,693.32
  4. Step 4: Simplify right side
    84,995.88x = 7,591,266,845.04
  5. Step 5: Solve for x
    x = 7,591,266,845.04/84,995.88
  6. Step 6: Final answer
    x = 89,313.35

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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.