Home / 92,015.28-126,985.59-51,741.72

Finding the Fourth Proportional to 92,015.28, 126,985.59 and 51,741.72

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Solution

The fourth proportional to 92,015.28, 126,985.59 and 51,741.72 is: 71,406.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,015.28 : 126,985.59 = 51,741.72 : x
  2. Step 2: Convert to fraction form
    92,015.28/126,985.59 = 51,741.72/x
  3. Step 3: Cross multiply
    92,015.28x = 126,985.59 × 51,741.72
  4. Step 4: Simplify right side
    92,015.28x = 6,570,452,841.81
  5. Step 5: Solve for x
    x = 6,570,452,841.81/92,015.28
  6. Step 6: Final answer
    x = 71,406.11

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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.