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Finding the Fourth Proportional to 72,915.81, 109,250.60 and 44,777.22

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Solution

The fourth proportional to 72,915.81, 109,250.60 and 44,777.22 is: 67,090.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,915.81 : 109,250.60 = 44,777.22 : x
  2. Step 2: Convert to fraction form
    72,915.81/109,250.60 = 44,777.22/x
  3. Step 3: Cross multiply
    72,915.81x = 109,250.60 × 44,777.22
  4. Step 4: Simplify right side
    72,915.81x = 4,891,937,927.45
  5. Step 5: Solve for x
    x = 4,891,937,927.45/72,915.81
  6. Step 6: Final answer
    x = 67,090.22

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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.