Home / 85,557.37-128,350.65-26,382.01

Finding the Fourth Proportional to 85,557.37, 128,350.65 and 26,382.01

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Solution

The fourth proportional to 85,557.37, 128,350.65 and 26,382.01 is: 39,577.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,557.37 : 128,350.65 = 26,382.01 : x
  2. Step 2: Convert to fraction form
    85,557.37/128,350.65 = 26,382.01/x
  3. Step 3: Cross multiply
    85,557.37x = 128,350.65 × 26,382.01
  4. Step 4: Simplify right side
    85,557.37x = 3,386,148,131.81
  5. Step 5: Solve for x
    x = 3,386,148,131.81/85,557.37
  6. Step 6: Final answer
    x = 39,577.52

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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.