Home / 78,696.11-108,597.47-42,885.35

Finding the Fourth Proportional to 78,696.11, 108,597.47 and 42,885.35

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Solution

The fourth proportional to 78,696.11, 108,597.47 and 42,885.35 is: 59,180.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,696.11 : 108,597.47 = 42,885.35 : x
  2. Step 2: Convert to fraction form
    78,696.11/108,597.47 = 42,885.35/x
  3. Step 3: Cross multiply
    78,696.11x = 108,597.47 × 42,885.35
  4. Step 4: Simplify right side
    78,696.11x = 4,657,240,567.13
  5. Step 5: Solve for x
    x = 4,657,240,567.13/78,696.11
  6. Step 6: Final answer
    x = 59,180.06

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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.