Home / 78,865.27-118,259.63-36,735.45

Finding the Fourth Proportional to 78,865.27, 118,259.63 and 36,735.45

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Solution

The fourth proportional to 78,865.27, 118,259.63 and 36,735.45 is: 55,085.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,865.27 : 118,259.63 = 36,735.45 : x
  2. Step 2: Convert to fraction form
    78,865.27/118,259.63 = 36,735.45/x
  3. Step 3: Cross multiply
    78,865.27x = 118,259.63 × 36,735.45
  4. Step 4: Simplify right side
    78,865.27x = 4,344,320,723.07
  5. Step 5: Solve for x
    x = 4,344,320,723.07/78,865.27
  6. Step 6: Final answer
    x = 55,085.35

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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.