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Finding the Fourth Proportional to 65,029.77, 89,740.74 and 35,221.77

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Solution

The fourth proportional to 65,029.77, 89,740.74 and 35,221.77 is: 48,605.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,029.77 : 89,740.74 = 35,221.77 : x
  2. Step 2: Convert to fraction form
    65,029.77/89,740.74 = 35,221.77/x
  3. Step 3: Cross multiply
    65,029.77x = 89,740.74 × 35,221.77
  4. Step 4: Simplify right side
    65,029.77x = 3,160,827,703.91
  5. Step 5: Solve for x
    x = 3,160,827,703.91/65,029.77
  6. Step 6: Final answer
    x = 48,605.86

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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.