Home / 51,316.36-76,986.08-18,038.72

Finding the Fourth Proportional to 51,316.36, 76,986.08 and 18,038.72

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Solution

The fourth proportional to 51,316.36, 76,986.08 and 18,038.72 is: 27,062.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,316.36 : 76,986.08 = 18,038.72 : x
  2. Step 2: Convert to fraction form
    51,316.36/76,986.08 = 18,038.72/x
  3. Step 3: Cross multiply
    51,316.36x = 76,986.08 × 18,038.72
  4. Step 4: Simplify right side
    51,316.36x = 1,388,730,341.02
  5. Step 5: Solve for x
    x = 1,388,730,341.02/51,316.36
  6. Step 6: Final answer
    x = 27,062.14

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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.