Home / 78,880.12-108,854.44-50,585.76

Finding the Fourth Proportional to 78,880.12, 108,854.44 and 50,585.76

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Solution

The fourth proportional to 78,880.12, 108,854.44 and 50,585.76 is: 69,808.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,880.12 : 108,854.44 = 50,585.76 : x
  2. Step 2: Convert to fraction form
    78,880.12/108,854.44 = 50,585.76/x
  3. Step 3: Cross multiply
    78,880.12x = 108,854.44 × 50,585.76
  4. Step 4: Simplify right side
    78,880.12x = 5,506,484,576.77
  5. Step 5: Solve for x
    x = 5,506,484,576.77/78,880.12
  6. Step 6: Final answer
    x = 69,808.27

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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.