Home / 72,244.56-99,701.64-40,414.80

Finding the Fourth Proportional to 72,244.56, 99,701.64 and 40,414.80

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Solution

The fourth proportional to 72,244.56, 99,701.64 and 40,414.80 is: 55,774.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,244.56 : 99,701.64 = 40,414.80 : x
  2. Step 2: Convert to fraction form
    72,244.56/99,701.64 = 40,414.80/x
  3. Step 3: Cross multiply
    72,244.56x = 99,701.64 × 40,414.80
  4. Step 4: Simplify right side
    72,244.56x = 4,029,421,840.27
  5. Step 5: Solve for x
    x = 4,029,421,840.27/72,244.56
  6. Step 6: Final answer
    x = 55,774.74

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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.