Home / 57,929.10-86,895.16-18,486.16

Finding the Fourth Proportional to 57,929.10, 86,895.16 and 18,486.16

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Solution

The fourth proportional to 57,929.10, 86,895.16 and 18,486.16 is: 27,729.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,929.10 : 86,895.16 = 18,486.16 : x
  2. Step 2: Convert to fraction form
    57,929.10/86,895.16 = 18,486.16/x
  3. Step 3: Cross multiply
    57,929.10x = 86,895.16 × 18,486.16
  4. Step 4: Simplify right side
    57,929.10x = 1,606,357,830.99
  5. Step 5: Solve for x
    x = 1,606,357,830.99/57,929.10
  6. Step 6: Final answer
    x = 27,729.72

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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.