Home / 64,123.19-96,189.62-19,140.99

Finding the Fourth Proportional to 64,123.19, 96,189.62 and 19,140.99

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Solution

The fourth proportional to 64,123.19, 96,189.62 and 19,140.99 is: 28,712.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,123.19 : 96,189.62 = 19,140.99 : x
  2. Step 2: Convert to fraction form
    64,123.19/96,189.62 = 19,140.99/x
  3. Step 3: Cross multiply
    64,123.19x = 96,189.62 × 19,140.99
  4. Step 4: Simplify right side
    64,123.19x = 1,841,164,666.09
  5. Step 5: Solve for x
    x = 1,841,164,666.09/64,123.19
  6. Step 6: Final answer
    x = 28,712.93

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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.