Home / 76,880.64-106,087.20-45,043.59

Finding the Fourth Proportional to 76,880.64, 106,087.20 and 45,043.59

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Solution

The fourth proportional to 76,880.64, 106,087.20 and 45,043.59 is: 62,155.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,880.64 : 106,087.20 = 45,043.59 : x
  2. Step 2: Convert to fraction form
    76,880.64/106,087.20 = 45,043.59/x
  3. Step 3: Cross multiply
    76,880.64x = 106,087.20 × 45,043.59
  4. Step 4: Simplify right side
    76,880.64x = 4,778,548,341.05
  5. Step 5: Solve for x
    x = 4,778,548,341.05/76,880.64
  6. Step 6: Final answer
    x = 62,155.42

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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.