Home / 42,894-64,345.50-11,729.25

Finding the Fourth Proportional to 42,894, 64,345.50 and 11,729.25

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Solution

The fourth proportional to 42,894, 64,345.50 and 11,729.25 is: 17,595.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,894 : 64,345.50 = 11,729.25 : x
  2. Step 2: Convert to fraction form
    42,894/64,345.50 = 11,729.25/x
  3. Step 3: Cross multiply
    42,894x = 64,345.50 × 11,729.25
  4. Step 4: Simplify right side
    42,894x = 754,724,455.88
  5. Step 5: Solve for x
    x = 754,724,455.88/42,894
  6. Step 6: Final answer
    x = 17,595.11

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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.