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Finding the Fourth Proportional to 84,875.61, 127,072.83 and 70,528.89

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Solution

The fourth proportional to 84,875.61, 127,072.83 and 70,528.89 is: 105,593.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,875.61 : 127,072.83 = 70,528.89 : x
  2. Step 2: Convert to fraction form
    84,875.61/127,072.83 = 70,528.89/x
  3. Step 3: Cross multiply
    84,875.61x = 127,072.83 × 70,528.89
  4. Step 4: Simplify right side
    84,875.61x = 8,962,305,649.06
  5. Step 5: Solve for x
    x = 8,962,305,649.06/84,875.61
  6. Step 6: Final answer
    x = 105,593.42

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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.