Home / 53,015.10-79,416.48-31,943.40

Finding the Fourth Proportional to 53,015.10, 79,416.48 and 31,943.40

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Solution

The fourth proportional to 53,015.10, 79,416.48 and 31,943.40 is: 47,851.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,015.10 : 79,416.48 = 31,943.40 : x
  2. Step 2: Convert to fraction form
    53,015.10/79,416.48 = 31,943.40/x
  3. Step 3: Cross multiply
    53,015.10x = 79,416.48 × 31,943.40
  4. Step 4: Simplify right side
    53,015.10x = 2,536,832,387.23
  5. Step 5: Solve for x
    x = 2,536,832,387.23/53,015.10
  6. Step 6: Final answer
    x = 47,851.13

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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.