Home / 85,776.36-128,632.94-29,602.14

Finding the Fourth Proportional to 85,776.36, 128,632.94 and 29,602.14

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Solution

The fourth proportional to 85,776.36, 128,632.94 and 29,602.14 is: 44,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,776.36 : 128,632.94 = 29,602.14 : x
  2. Step 2: Convert to fraction form
    85,776.36/128,632.94 = 29,602.14/x
  3. Step 3: Cross multiply
    85,776.36x = 128,632.94 × 29,602.14
  4. Step 4: Simplify right side
    85,776.36x = 3,807,810,298.49
  5. Step 5: Solve for x
    x = 3,807,810,298.49/85,776.36
  6. Step 6: Final answer
    x = 44,392.30

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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.