Home / 56,080.16-84,108.36-21,022.40

Finding the Fourth Proportional to 56,080.16, 84,108.36 and 21,022.40

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Solution

The fourth proportional to 56,080.16, 84,108.36 and 21,022.40 is: 31,529.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,080.16 : 84,108.36 = 21,022.40 : x
  2. Step 2: Convert to fraction form
    56,080.16/84,108.36 = 21,022.40/x
  3. Step 3: Cross multiply
    56,080.16x = 84,108.36 × 21,022.40
  4. Step 4: Simplify right side
    56,080.16x = 1,768,159,587.26
  5. Step 5: Solve for x
    x = 1,768,159,587.26/56,080.16
  6. Step 6: Final answer
    x = 31,529.15

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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.