Home / 42,681.12-64,054.34-19,323.96

Finding the Fourth Proportional to 42,681.12, 64,054.34 and 19,323.96

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Solution

The fourth proportional to 42,681.12, 64,054.34 and 19,323.96 is: 29,000.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,681.12 : 64,054.34 = 19,323.96 : x
  2. Step 2: Convert to fraction form
    42,681.12/64,054.34 = 19,323.96/x
  3. Step 3: Cross multiply
    42,681.12x = 64,054.34 × 19,323.96
  4. Step 4: Simplify right side
    42,681.12x = 1,237,783,503.99
  5. Step 5: Solve for x
    x = 1,237,783,503.99/42,681.12
  6. Step 6: Final answer
    x = 29,000.73

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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.