Home / 53,929.35-74,422.80-31,281.75

Finding the Fourth Proportional to 53,929.35, 74,422.80 and 31,281.75

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Solution

The fourth proportional to 53,929.35, 74,422.80 and 31,281.75 is: 43,168.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,929.35 : 74,422.80 = 31,281.75 : x
  2. Step 2: Convert to fraction form
    53,929.35/74,422.80 = 31,281.75/x
  3. Step 3: Cross multiply
    53,929.35x = 74,422.80 × 31,281.75
  4. Step 4: Simplify right side
    53,929.35x = 2,328,075,423.90
  5. Step 5: Solve for x
    x = 2,328,075,423.90/53,929.35
  6. Step 6: Final answer
    x = 43,168.99

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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.