Home / 86,211.19-118,967.16-47,972.98

Finding the Fourth Proportional to 86,211.19, 118,967.16 and 47,972.98

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Solution

The fourth proportional to 86,211.19, 118,967.16 and 47,972.98 is: 66,200.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,211.19 : 118,967.16 = 47,972.98 : x
  2. Step 2: Convert to fraction form
    86,211.19/118,967.16 = 47,972.98/x
  3. Step 3: Cross multiply
    86,211.19x = 118,967.16 × 47,972.98
  4. Step 4: Simplify right side
    86,211.19x = 5,707,209,187.34
  5. Step 5: Solve for x
    x = 5,707,209,187.34/86,211.19
  6. Step 6: Final answer
    x = 66,200.33

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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.