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Finding the Fourth Proportional to 58,726.80, 88,090.20 and 21,805.20

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Solution

The fourth proportional to 58,726.80, 88,090.20 and 21,805.20 is: 32,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,726.80 : 88,090.20 = 21,805.20 : x
  2. Step 2: Convert to fraction form
    58,726.80/88,090.20 = 21,805.20/x
  3. Step 3: Cross multiply
    58,726.80x = 88,090.20 × 21,805.20
  4. Step 4: Simplify right side
    58,726.80x = 1,920,824,429.04
  5. Step 5: Solve for x
    x = 1,920,824,429.04/58,726.80
  6. Step 6: Final answer
    x = 32,707.80

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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.