Home / 91,938.45-126,867.29-51,649.05

Finding the Fourth Proportional to 91,938.45, 126,867.29 and 51,649.05

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Solution

The fourth proportional to 91,938.45, 126,867.29 and 51,649.05 is: 71,271.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,938.45 : 126,867.29 = 51,649.05 : x
  2. Step 2: Convert to fraction form
    91,938.45/126,867.29 = 51,649.05/x
  3. Step 3: Cross multiply
    91,938.45x = 126,867.29 × 51,649.05
  4. Step 4: Simplify right side
    91,938.45x = 6,552,574,746.33
  5. Step 5: Solve for x
    x = 6,552,574,746.33/91,938.45
  6. Step 6: Final answer
    x = 71,271.32

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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.