Home / 78,611.04-118,020.24-36,536.40

Finding the Fourth Proportional to 78,611.04, 118,020.24 and 36,536.40

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Solution

The fourth proportional to 78,611.04, 118,020.24 and 36,536.40 is: 54,852.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,611.04 : 118,020.24 = 36,536.40 : x
  2. Step 2: Convert to fraction form
    78,611.04/118,020.24 = 36,536.40/x
  3. Step 3: Cross multiply
    78,611.04x = 118,020.24 × 36,536.40
  4. Step 4: Simplify right side
    78,611.04x = 4,312,034,696.74
  5. Step 5: Solve for x
    x = 4,312,034,696.74/78,611.04
  6. Step 6: Final answer
    x = 54,852.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.