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Finding the Fourth Proportional to 77,392.80, 116,089.23 and 51,091.40

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Solution

The fourth proportional to 77,392.80, 116,089.23 and 51,091.40 is: 76,637.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,392.80 : 116,089.23 = 51,091.40 : x
  2. Step 2: Convert to fraction form
    77,392.80/116,089.23 = 51,091.40/x
  3. Step 3: Cross multiply
    77,392.80x = 116,089.23 × 51,091.40
  4. Step 4: Simplify right side
    77,392.80x = 5,931,161,285.62
  5. Step 5: Solve for x
    x = 5,931,161,285.62/77,392.80
  6. Step 6: Final answer
    x = 76,637.12

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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.