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Finding the Fourth Proportional to 70,963.75, 97,927.41 and 39,130.75

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Solution

The fourth proportional to 70,963.75, 97,927.41 and 39,130.75 is: 53,999.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,963.75 : 97,927.41 = 39,130.75 : x
  2. Step 2: Convert to fraction form
    70,963.75/97,927.41 = 39,130.75/x
  3. Step 3: Cross multiply
    70,963.75x = 97,927.41 × 39,130.75
  4. Step 4: Simplify right side
    70,963.75x = 3,831,972,998.86
  5. Step 5: Solve for x
    x = 3,831,972,998.86/70,963.75
  6. Step 6: Final answer
    x = 53,999.02

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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.