Home / 80,639.64-111,266.46-47,099.16

Finding the Fourth Proportional to 80,639.64, 111,266.46 and 47,099.16

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Solution

The fourth proportional to 80,639.64, 111,266.46 and 47,099.16 is: 64,987.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,639.64 : 111,266.46 = 47,099.16 : x
  2. Step 2: Convert to fraction form
    80,639.64/111,266.46 = 47,099.16/x
  3. Step 3: Cross multiply
    80,639.64x = 111,266.46 × 47,099.16
  4. Step 4: Simplify right side
    80,639.64x = 5,240,556,802.17
  5. Step 5: Solve for x
    x = 5,240,556,802.17/80,639.64
  6. Step 6: Final answer
    x = 64,987.35

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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.