Home / 42,581.21-63,881.71-14,501.51

Finding the Fourth Proportional to 42,581.21, 63,881.71 and 14,501.51

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Solution

The fourth proportional to 42,581.21, 63,881.71 and 14,501.51 is: 21,755.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,581.21 : 63,881.71 = 14,501.51 : x
  2. Step 2: Convert to fraction form
    42,581.21/63,881.71 = 14,501.51/x
  3. Step 3: Cross multiply
    42,581.21x = 63,881.71 × 14,501.51
  4. Step 4: Simplify right side
    42,581.21x = 926,381,390.61
  5. Step 5: Solve for x
    x = 926,381,390.61/42,581.21
  6. Step 6: Final answer
    x = 21,755.64

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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.