Home / 51,987.10-77,985.56-14,547.18

Finding the Fourth Proportional to 51,987.10, 77,985.56 and 14,547.18

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Solution

The fourth proportional to 51,987.10, 77,985.56 and 14,547.18 is: 21,822.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,987.10 : 77,985.56 = 14,547.18 : x
  2. Step 2: Convert to fraction form
    51,987.10/77,985.56 = 14,547.18/x
  3. Step 3: Cross multiply
    51,987.10x = 77,985.56 × 14,547.18
  4. Step 4: Simplify right side
    51,987.10x = 1,134,469,978.72
  5. Step 5: Solve for x
    x = 1,134,469,978.72/51,987.10
  6. Step 6: Final answer
    x = 21,822.14

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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.