Home / 74,861.42-103,307.09-40,868.60

Finding the Fourth Proportional to 74,861.42, 103,307.09 and 40,868.60

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Solution

The fourth proportional to 74,861.42, 103,307.09 and 40,868.60 is: 56,397.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,861.42 : 103,307.09 = 40,868.60 : x
  2. Step 2: Convert to fraction form
    74,861.42/103,307.09 = 40,868.60/x
  3. Step 3: Cross multiply
    74,861.42x = 103,307.09 × 40,868.60
  4. Step 4: Simplify right side
    74,861.42x = 4,222,015,417.50
  5. Step 5: Solve for x
    x = 4,222,015,417.50/74,861.42
  6. Step 6: Final answer
    x = 56,397.75

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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.