Home / 47,643-65,749.17-26,421.81

Finding the Fourth Proportional to 47,643, 65,749.17 and 26,421.81

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Solution

The fourth proportional to 47,643, 65,749.17 and 26,421.81 is: 36,463.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,643 : 65,749.17 = 26,421.81 : x
  2. Step 2: Convert to fraction form
    47,643/65,749.17 = 26,421.81/x
  3. Step 3: Cross multiply
    47,643x = 65,749.17 × 26,421.81
  4. Step 4: Simplify right side
    47,643x = 1,737,212,077.40
  5. Step 5: Solve for x
    x = 1,737,212,077.40/47,643
  6. Step 6: Final answer
    x = 36,463.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.