Home / 78,222.20-117,011.95-62,458.02

Finding the Fourth Proportional to 78,222.20, 117,011.95 and 62,458.02

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Solution

The fourth proportional to 78,222.20, 117,011.95 and 62,458.02 is: 93,430.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,222.20 : 117,011.95 = 62,458.02 : x
  2. Step 2: Convert to fraction form
    78,222.20/117,011.95 = 62,458.02/x
  3. Step 3: Cross multiply
    78,222.20x = 117,011.95 × 62,458.02
  4. Step 4: Simplify right side
    78,222.20x = 7,308,333,815.99
  5. Step 5: Solve for x
    x = 7,308,333,815.99/78,222.20
  6. Step 6: Final answer
    x = 93,430.44

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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.