Home / 77,671.04-107,145.52-48,975.12

Finding the Fourth Proportional to 77,671.04, 107,145.52 and 48,975.12

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Solution

The fourth proportional to 77,671.04, 107,145.52 and 48,975.12 is: 67,560.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,671.04 : 107,145.52 = 48,975.12 : x
  2. Step 2: Convert to fraction form
    77,671.04/107,145.52 = 48,975.12/x
  3. Step 3: Cross multiply
    77,671.04x = 107,145.52 × 48,975.12
  4. Step 4: Simplify right side
    77,671.04x = 5,247,464,699.46
  5. Step 5: Solve for x
    x = 5,247,464,699.46/77,671.04
  6. Step 6: Final answer
    x = 67,560.12

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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.