Home / 75,031.07-112,505.05-30,688.96

Finding the Fourth Proportional to 75,031.07, 112,505.05 and 30,688.96

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Solution

The fourth proportional to 75,031.07, 112,505.05 and 30,688.96 is: 46,016.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,031.07 : 112,505.05 = 30,688.96 : x
  2. Step 2: Convert to fraction form
    75,031.07/112,505.05 = 30,688.96/x
  3. Step 3: Cross multiply
    75,031.07x = 112,505.05 × 30,688.96
  4. Step 4: Simplify right side
    75,031.07x = 3,452,662,263.28
  5. Step 5: Solve for x
    x = 3,452,662,263.28/75,031.07
  6. Step 6: Final answer
    x = 46,016.44

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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.