Home / 80,646.57-111,271.93-48,809.32

Finding the Fourth Proportional to 80,646.57, 111,271.93 and 48,809.32

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Solution

The fourth proportional to 80,646.57, 111,271.93 and 48,809.32 is: 67,344.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,646.57 : 111,271.93 = 48,809.32 : x
  2. Step 2: Convert to fraction form
    80,646.57/111,271.93 = 48,809.32/x
  3. Step 3: Cross multiply
    80,646.57x = 111,271.93 × 48,809.32
  4. Step 4: Simplify right side
    80,646.57x = 5,431,106,838.18
  5. Step 5: Solve for x
    x = 5,431,106,838.18/80,646.57
  6. Step 6: Final answer
    x = 67,344.55

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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.