Home / 85,868.01-128,775.77-59,384.19

Finding the Fourth Proportional to 85,868.01, 128,775.77 and 59,384.19

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Solution

The fourth proportional to 85,868.01, 128,775.77 and 59,384.19 is: 89,058.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,868.01 : 128,775.77 = 59,384.19 : x
  2. Step 2: Convert to fraction form
    85,868.01/128,775.77 = 59,384.19/x
  3. Step 3: Cross multiply
    85,868.01x = 128,775.77 × 59,384.19
  4. Step 4: Simplify right side
    85,868.01x = 7,647,244,793.08
  5. Step 5: Solve for x
    x = 7,647,244,793.08/85,868.01
  6. Step 6: Final answer
    x = 89,058.13

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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.