Home / 91,317.02-126,029.39-51,039.16

Finding the Fourth Proportional to 91,317.02, 126,029.39 and 51,039.16

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Solution

The fourth proportional to 91,317.02, 126,029.39 and 51,039.16 is: 70,440.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,317.02 : 126,029.39 = 51,039.16 : x
  2. Step 2: Convert to fraction form
    91,317.02/126,029.39 = 51,039.16/x
  3. Step 3: Cross multiply
    91,317.02x = 126,029.39 × 51,039.16
  4. Step 4: Simplify right side
    91,317.02x = 6,432,433,630.64
  5. Step 5: Solve for x
    x = 6,432,433,630.64/91,317.02
  6. Step 6: Final answer
    x = 70,440.69

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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.