Home / 53,870.34-80,805.90-18,810.02

Finding the Fourth Proportional to 53,870.34, 80,805.90 and 18,810.02

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Solution

The fourth proportional to 53,870.34, 80,805.90 and 18,810.02 is: 28,215.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,870.34 : 80,805.90 = 18,810.02 : x
  2. Step 2: Convert to fraction form
    53,870.34/80,805.90 = 18,810.02/x
  3. Step 3: Cross multiply
    53,870.34x = 80,805.90 × 18,810.02
  4. Step 4: Simplify right side
    53,870.34x = 1,519,960,595.12
  5. Step 5: Solve for x
    x = 1,519,960,595.12/53,870.34
  6. Step 6: Final answer
    x = 28,215.17

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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.