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Finding the Fourth Proportional to 91,159.94, 125,807.03 and 50,881.55

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Solution

The fourth proportional to 91,159.94, 125,807.03 and 50,881.55 is: 70,220.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,159.94 : 125,807.03 = 50,881.55 : x
  2. Step 2: Convert to fraction form
    91,159.94/125,807.03 = 50,881.55/x
  3. Step 3: Cross multiply
    91,159.94x = 125,807.03 × 50,881.55
  4. Step 4: Simplify right side
    91,159.94x = 6,401,255,803.85
  5. Step 5: Solve for x
    x = 6,401,255,803.85/91,159.94
  6. Step 6: Final answer
    x = 70,220.06

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1.5x scale

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.