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Finding the Fourth Proportional to 85,210.29, 127,813.59 and 22,880.79

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Solution

The fourth proportional to 85,210.29, 127,813.59 and 22,880.79 is: 34,320.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,210.29 : 127,813.59 = 22,880.79 : x
  2. Step 2: Convert to fraction form
    85,210.29/127,813.59 = 22,880.79/x
  3. Step 3: Cross multiply
    85,210.29x = 127,813.59 × 22,880.79
  4. Step 4: Simplify right side
    85,210.29x = 2,924,475,911.94
  5. Step 5: Solve for x
    x = 2,924,475,911.94/85,210.29
  6. Step 6: Final answer
    x = 34,320.69

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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.