Home / 85,557.81-128,326.91-22,384.04

Finding the Fourth Proportional to 85,557.81, 128,326.91 and 22,384.04

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Solution

The fourth proportional to 85,557.81, 128,326.91 and 22,384.04 is: 33,573.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,557.81 : 128,326.91 = 22,384.04 : x
  2. Step 2: Convert to fraction form
    85,557.81/128,326.91 = 22,384.04/x
  3. Step 3: Cross multiply
    85,557.81x = 128,326.91 × 22,384.04
  4. Step 4: Simplify right side
    85,557.81x = 2,872,474,100.84
  5. Step 5: Solve for x
    x = 2,872,474,100.84/85,557.81
  6. Step 6: Final answer
    x = 33,573.49

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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.