Home / 42,755.81-64,134.63-14,675.75

Finding the Fourth Proportional to 42,755.81, 64,134.63 and 14,675.75

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Solution

The fourth proportional to 42,755.81, 64,134.63 and 14,675.75 is: 22,013.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,755.81 : 64,134.63 = 14,675.75 : x
  2. Step 2: Convert to fraction form
    42,755.81/64,134.63 = 14,675.75/x
  3. Step 3: Cross multiply
    42,755.81x = 64,134.63 × 14,675.75
  4. Step 4: Simplify right side
    42,755.81x = 941,223,475.55
  5. Step 5: Solve for x
    x = 941,223,475.55/42,755.81
  6. Step 6: Final answer
    x = 22,013.93

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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.