Home / 73,015.40-100,742.16-42,784.52

Finding the Fourth Proportional to 73,015.40, 100,742.16 and 42,784.52

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Solution

The fourth proportional to 73,015.40, 100,742.16 and 42,784.52 is: 59,031.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,015.40 : 100,742.16 = 42,784.52 : x
  2. Step 2: Convert to fraction form
    73,015.40/100,742.16 = 42,784.52/x
  3. Step 3: Cross multiply
    73,015.40x = 100,742.16 × 42,784.52
  4. Step 4: Simplify right side
    73,015.40x = 4,310,204,959.36
  5. Step 5: Solve for x
    x = 4,310,204,959.36/73,015.40
  6. Step 6: Final answer
    x = 59,031.45

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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.