Home / 85,867.40-128,828.10-41,495.60

Finding the Fourth Proportional to 85,867.40, 128,828.10 and 41,495.60

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Solution

The fourth proportional to 85,867.40, 128,828.10 and 41,495.60 is: 62,256.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,867.40 : 128,828.10 = 41,495.60 : x
  2. Step 2: Convert to fraction form
    85,867.40/128,828.10 = 41,495.60/x
  3. Step 3: Cross multiply
    85,867.40x = 128,828.10 × 41,495.60
  4. Step 4: Simplify right side
    85,867.40x = 5,345,799,306.36
  5. Step 5: Solve for x
    x = 5,345,799,306.36/85,867.40
  6. Step 6: Final answer
    x = 62,256.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.