Home / 74,767.32-103,178.99-40,775.86

Finding the Fourth Proportional to 74,767.32, 103,178.99 and 40,775.86

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Solution

The fourth proportional to 74,767.32, 103,178.99 and 40,775.86 is: 56,270.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,767.32 : 103,178.99 = 40,775.86 : x
  2. Step 2: Convert to fraction form
    74,767.32/103,178.99 = 40,775.86/x
  3. Step 3: Cross multiply
    74,767.32x = 103,178.99 × 40,775.86
  4. Step 4: Simplify right side
    74,767.32x = 4,207,212,051.18
  5. Step 5: Solve for x
    x = 4,207,212,051.18/74,767.32
  6. Step 6: Final answer
    x = 56,270.74

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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.