Home / 85,537.96-128,298.69-26,357.74

Finding the Fourth Proportional to 85,537.96, 128,298.69 and 26,357.74

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Solution

The fourth proportional to 85,537.96, 128,298.69 and 26,357.74 is: 39,534.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,537.96 : 128,298.69 = 26,357.74 : x
  2. Step 2: Convert to fraction form
    85,537.96/128,298.69 = 26,357.74/x
  3. Step 3: Cross multiply
    85,537.96x = 128,298.69 × 26,357.74
  4. Step 4: Simplify right side
    85,537.96x = 3,381,663,192.61
  5. Step 5: Solve for x
    x = 3,381,663,192.61/85,537.96
  6. Step 6: Final answer
    x = 39,534.07

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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.