Home / 85,698.23-128,575.98-41,319.74

Finding the Fourth Proportional to 85,698.23, 128,575.98 and 41,319.74

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Solution

The fourth proportional to 85,698.23, 128,575.98 and 41,319.74 is: 61,993.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,698.23 : 128,575.98 = 41,319.74 : x
  2. Step 2: Convert to fraction form
    85,698.23/128,575.98 = 41,319.74/x
  3. Step 3: Cross multiply
    85,698.23x = 128,575.98 × 41,319.74
  4. Step 4: Simplify right side
    85,698.23x = 5,312,725,420.97
  5. Step 5: Solve for x
    x = 5,312,725,420.97/85,698.23
  6. Step 6: Final answer
    x = 61,993.41

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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.