Home / 78,158.89-117,395.27-46,630.55

Finding the Fourth Proportional to 78,158.89, 117,395.27 and 46,630.55

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Solution

The fourth proportional to 78,158.89, 117,395.27 and 46,630.55 is: 70,039.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,158.89 : 117,395.27 = 46,630.55 : x
  2. Step 2: Convert to fraction form
    78,158.89/117,395.27 = 46,630.55/x
  3. Step 3: Cross multiply
    78,158.89x = 117,395.27 × 46,630.55
  4. Step 4: Simplify right side
    78,158.89x = 5,474,206,007.50
  5. Step 5: Solve for x
    x = 5,474,206,007.50/78,158.89
  6. Step 6: Final answer
    x = 70,039.45

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1.5x scale

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.