Home / 78,474.06-108,293.67-42,664.08

Finding the Fourth Proportional to 78,474.06, 108,293.67 and 42,664.08

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Solution

The fourth proportional to 78,474.06, 108,293.67 and 42,664.08 is: 58,876.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,474.06 : 108,293.67 = 42,664.08 : x
  2. Step 2: Convert to fraction form
    78,474.06/108,293.67 = 42,664.08/x
  3. Step 3: Cross multiply
    78,474.06x = 108,293.67 × 42,664.08
  4. Step 4: Simplify right side
    78,474.06x = 4,620,249,554.26
  5. Step 5: Solve for x
    x = 4,620,249,554.26/78,474.06
  6. Step 6: Final answer
    x = 58,876.13

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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.