Home / 75,802.91-113,681.27-31,419.23

Finding the Fourth Proportional to 75,802.91, 113,681.27 and 31,419.23

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Solution

The fourth proportional to 75,802.91, 113,681.27 and 31,419.23 is: 47,119.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,802.91 : 113,681.27 = 31,419.23 : x
  2. Step 2: Convert to fraction form
    75,802.91/113,681.27 = 31,419.23/x
  3. Step 3: Cross multiply
    75,802.91x = 113,681.27 × 31,419.23
  4. Step 4: Simplify right side
    75,802.91x = 3,571,777,478.96
  5. Step 5: Solve for x
    x = 3,571,777,478.96/75,802.91
  6. Step 6: Final answer
    x = 47,119.27

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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.