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Finding the Fourth Proportional to 61,535, 84,918.30 and 33,240.69

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Solution

The fourth proportional to 61,535, 84,918.30 and 33,240.69 is: 45,872.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,535 : 84,918.30 = 33,240.69 : x
  2. Step 2: Convert to fraction form
    61,535/84,918.30 = 33,240.69/x
  3. Step 3: Cross multiply
    61,535x = 84,918.30 × 33,240.69
  4. Step 4: Simplify right side
    61,535x = 2,822,742,885.63
  5. Step 5: Solve for x
    x = 2,822,742,885.63/61,535
  6. Step 6: Final answer
    x = 45,872.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.