Home / 78,970.17-118,477.26-43,934.43

Finding the Fourth Proportional to 78,970.17, 118,477.26 and 43,934.43

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Solution

The fourth proportional to 78,970.17, 118,477.26 and 43,934.43 is: 65,913.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,970.17 : 118,477.26 = 43,934.43 : x
  2. Step 2: Convert to fraction form
    78,970.17/118,477.26 = 43,934.43/x
  3. Step 3: Cross multiply
    78,970.17x = 118,477.26 × 43,934.43
  4. Step 4: Simplify right side
    78,970.17x = 5,205,230,886.06
  5. Step 5: Solve for x
    x = 5,205,230,886.06/78,970.17
  6. Step 6: Final answer
    x = 65,913.89

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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.