Home / 85,381.32-128,073.06-23,053.08

Finding the Fourth Proportional to 85,381.32, 128,073.06 and 23,053.08

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Solution

The fourth proportional to 85,381.32, 128,073.06 and 23,053.08 is: 34,579.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,381.32 : 128,073.06 = 23,053.08 : x
  2. Step 2: Convert to fraction form
    85,381.32/128,073.06 = 23,053.08/x
  3. Step 3: Cross multiply
    85,381.32x = 128,073.06 × 23,053.08
  4. Step 4: Simplify right side
    85,381.32x = 2,952,478,498.02
  5. Step 5: Solve for x
    x = 2,952,478,498.02/85,381.32
  6. Step 6: Final answer
    x = 34,579.91

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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.