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Finding the Fourth Proportional to 77,967.16, 116,950.49 and 18,802.83

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Solution

The fourth proportional to 77,967.16, 116,950.49 and 18,802.83 is: 28,204.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,967.16 : 116,950.49 = 18,802.83 : x
  2. Step 2: Convert to fraction form
    77,967.16/116,950.49 = 18,802.83/x
  3. Step 3: Cross multiply
    77,967.16x = 116,950.49 × 18,802.83
  4. Step 4: Simplify right side
    77,967.16x = 2,199,000,596.95
  5. Step 5: Solve for x
    x = 2,199,000,596.95/77,967.16
  6. Step 6: Final answer
    x = 28,204.19

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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.