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Finding the Fourth Proportional to 77,962.30, 116,950.83 and 21,802.40

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Solution

The fourth proportional to 77,962.30, 116,950.83 and 21,802.40 is: 32,705.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,962.30 : 116,950.83 = 21,802.40 : x
  2. Step 2: Convert to fraction form
    77,962.30/116,950.83 = 21,802.40/x
  3. Step 3: Cross multiply
    77,962.30x = 116,950.83 × 21,802.40
  4. Step 4: Simplify right side
    77,962.30x = 2,549,808,775.99
  5. Step 5: Solve for x
    x = 2,549,808,775.99/77,962.30
  6. Step 6: Final answer
    x = 32,705.66

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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.