Home / 56,721.33-85,134.51-28,661.13

Finding the Fourth Proportional to 56,721.33, 85,134.51 and 28,661.13

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Solution

The fourth proportional to 56,721.33, 85,134.51 and 28,661.13 is: 43,018.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,721.33 : 85,134.51 = 28,661.13 : x
  2. Step 2: Convert to fraction form
    56,721.33/85,134.51 = 28,661.13/x
  3. Step 3: Cross multiply
    56,721.33x = 85,134.51 × 28,661.13
  4. Step 4: Simplify right side
    56,721.33x = 2,440,051,258.60
  5. Step 5: Solve for x
    x = 2,440,051,258.60/56,721.33
  6. Step 6: Final answer
    x = 43,018.23

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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.