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Finding the Fourth Proportional to 65,484.77, 90,369.61 and 37,190.66

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Solution

The fourth proportional to 65,484.77, 90,369.61 and 37,190.66 is: 51,323.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,484.77 : 90,369.61 = 37,190.66 : x
  2. Step 2: Convert to fraction form
    65,484.77/90,369.61 = 37,190.66/x
  3. Step 3: Cross multiply
    65,484.77x = 90,369.61 × 37,190.66
  4. Step 4: Simplify right side
    65,484.77x = 3,360,904,895.02
  5. Step 5: Solve for x
    x = 3,360,904,895.02/65,484.77
  6. Step 6: Final answer
    x = 51,323.46

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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.