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Finding the Fourth Proportional to 78,007.80, 116,817.30 and 62,455.80

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Solution

The fourth proportional to 78,007.80, 116,817.30 and 62,455.80 is: 93,528.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,007.80 : 116,817.30 = 62,455.80 : x
  2. Step 2: Convert to fraction form
    78,007.80/116,817.30 = 62,455.80/x
  3. Step 3: Cross multiply
    78,007.80x = 116,817.30 × 62,455.80
  4. Step 4: Simplify right side
    78,007.80x = 7,295,917,925.34
  5. Step 5: Solve for x
    x = 7,295,917,925.34/78,007.80
  6. Step 6: Final answer
    x = 93,528.06

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1.5x scale

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.