Home / 85,562.19-128,355.98-29,416.77

Finding the Fourth Proportional to 85,562.19, 128,355.98 and 29,416.77

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Solution

The fourth proportional to 85,562.19, 128,355.98 and 29,416.77 is: 44,129.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,562.19 : 128,355.98 = 29,416.77 : x
  2. Step 2: Convert to fraction form
    85,562.19/128,355.98 = 29,416.77/x
  3. Step 3: Cross multiply
    85,562.19x = 128,355.98 × 29,416.77
  4. Step 4: Simplify right side
    85,562.19x = 3,775,818,194.70
  5. Step 5: Solve for x
    x = 3,775,818,194.70/85,562.19
  6. Step 6: Final answer
    x = 44,129.52

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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.