Home / 78,904.77-118,358.19-26,314.27

Finding the Fourth Proportional to 78,904.77, 118,358.19 and 26,314.27

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Solution

The fourth proportional to 78,904.77, 118,358.19 and 26,314.27 is: 39,471.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,904.77 : 118,358.19 = 26,314.27 : x
  2. Step 2: Convert to fraction form
    78,904.77/118,358.19 = 26,314.27/x
  3. Step 3: Cross multiply
    78,904.77x = 118,358.19 × 26,314.27
  4. Step 4: Simplify right side
    78,904.77x = 3,114,509,368.37
  5. Step 5: Solve for x
    x = 3,114,509,368.37/78,904.77
  6. Step 6: Final answer
    x = 39,471.75

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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.