Home / 58,719.09-88,078.40-21,270.40

Finding the Fourth Proportional to 58,719.09, 88,078.40 and 21,270.40

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Solution

The fourth proportional to 58,719.09, 88,078.40 and 21,270.40 is: 31,905.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,719.09 : 88,078.40 = 21,270.40 : x
  2. Step 2: Convert to fraction form
    58,719.09/88,078.40 = 21,270.40/x
  3. Step 3: Cross multiply
    58,719.09x = 88,078.40 × 21,270.40
  4. Step 4: Simplify right side
    58,719.09x = 1,873,462,962.63
  5. Step 5: Solve for x
    x = 1,873,462,962.63/58,719.09
  6. Step 6: Final answer
    x = 31,905.52

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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.