Home / 77,404.12-106,772.32-48,678.22

Finding the Fourth Proportional to 77,404.12, 106,772.32 and 48,678.22

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Solution

The fourth proportional to 77,404.12, 106,772.32 and 48,678.22 is: 67,147.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,404.12 : 106,772.32 = 48,678.22 : x
  2. Step 2: Convert to fraction form
    77,404.12/106,772.32 = 48,678.22/x
  3. Step 3: Cross multiply
    77,404.12x = 106,772.32 × 48,678.22
  4. Step 4: Simplify right side
    77,404.12x = 5,197,486,482.87
  5. Step 5: Solve for x
    x = 5,197,486,482.87/77,404.12
  6. Step 6: Final answer
    x = 67,147.41

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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.