Home / 78,913.48-118,370.67-26,322.81

Finding the Fourth Proportional to 78,913.48, 118,370.67 and 26,322.81

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Solution

The fourth proportional to 78,913.48, 118,370.67 and 26,322.81 is: 39,484.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,913.48 : 118,370.67 = 26,322.81 : x
  2. Step 2: Convert to fraction form
    78,913.48/118,370.67 = 26,322.81/x
  3. Step 3: Cross multiply
    78,913.48x = 118,370.67 × 26,322.81
  4. Step 4: Simplify right side
    78,913.48x = 3,115,848,655.98
  5. Step 5: Solve for x
    x = 3,115,848,655.98/78,913.48
  6. Step 6: Final answer
    x = 39,484.37

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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.