Home / 78,192.47-117,270.72-46,611.45

Finding the Fourth Proportional to 78,192.47, 117,270.72 and 46,611.45

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Solution

The fourth proportional to 78,192.47, 117,270.72 and 46,611.45 is: 69,906.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,192.47 : 117,270.72 = 46,611.45 : x
  2. Step 2: Convert to fraction form
    78,192.47/117,270.72 = 46,611.45/x
  3. Step 3: Cross multiply
    78,192.47x = 117,270.72 × 46,611.45
  4. Step 4: Simplify right side
    78,192.47x = 5,466,158,301.74
  5. Step 5: Solve for x
    x = 5,466,158,301.74/78,192.47
  6. Step 6: Final answer
    x = 69,906.45

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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.