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Finding the Fourth Proportional to 73,087.58, 109,343 and 56,320.58

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Solution

The fourth proportional to 73,087.58, 109,343 and 56,320.58 is: 84,258.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,087.58 : 109,343 = 56,320.58 : x
  2. Step 2: Convert to fraction form
    73,087.58/109,343 = 56,320.58/x
  3. Step 3: Cross multiply
    73,087.58x = 109,343 × 56,320.58
  4. Step 4: Simplify right side
    73,087.58x = 6,158,261,178.94
  5. Step 5: Solve for x
    x = 6,158,261,178.94/73,087.58
  6. Step 6: Final answer
    x = 84,258.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.