Home / 75,665.07-104,386.41-45,031.95

Finding the Fourth Proportional to 75,665.07, 104,386.41 and 45,031.95

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Solution

The fourth proportional to 75,665.07, 104,386.41 and 45,031.95 is: 62,125.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,665.07 : 104,386.41 = 45,031.95 : x
  2. Step 2: Convert to fraction form
    75,665.07/104,386.41 = 45,031.95/x
  3. Step 3: Cross multiply
    75,665.07x = 104,386.41 × 45,031.95
  4. Step 4: Simplify right side
    75,665.07x = 4,700,723,595.80
  5. Step 5: Solve for x
    x = 4,700,723,595.80/75,665.07
  6. Step 6: Final answer
    x = 62,125.41

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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.