Home / 66,772.42-92,145.77-39,913.62

Finding the Fourth Proportional to 66,772.42, 92,145.77 and 39,913.62

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Solution

The fourth proportional to 66,772.42, 92,145.77 and 39,913.62 is: 55,080.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,772.42 : 92,145.77 = 39,913.62 : x
  2. Step 2: Convert to fraction form
    66,772.42/92,145.77 = 39,913.62/x
  3. Step 3: Cross multiply
    66,772.42x = 92,145.77 × 39,913.62
  4. Step 4: Simplify right side
    66,772.42x = 3,677,871,248.39
  5. Step 5: Solve for x
    x = 3,677,871,248.39/66,772.42
  6. Step 6: Final answer
    x = 55,080.69

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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.