Home / 56,130.69-84,171.18-21,045.72

Finding the Fourth Proportional to 56,130.69, 84,171.18 and 21,045.72

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Solution

The fourth proportional to 56,130.69, 84,171.18 and 21,045.72 is: 31,559.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,130.69 : 84,171.18 = 21,045.72 : x
  2. Step 2: Convert to fraction form
    56,130.69/84,171.18 = 21,045.72/x
  3. Step 3: Cross multiply
    56,130.69x = 84,171.18 × 21,045.72
  4. Step 4: Simplify right side
    56,130.69x = 1,771,443,086.35
  5. Step 5: Solve for x
    x = 1,771,443,086.35/56,130.69
  6. Step 6: Final answer
    x = 31,559.26

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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.