Home / 55,985.50-83,979.87-14,432.50

Finding the Fourth Proportional to 55,985.50, 83,979.87 and 14,432.50

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Solution

The fourth proportional to 55,985.50, 83,979.87 and 14,432.50 is: 21,649.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,985.50 : 83,979.87 = 14,432.50 : x
  2. Step 2: Convert to fraction form
    55,985.50/83,979.87 = 14,432.50/x
  3. Step 3: Cross multiply
    55,985.50x = 83,979.87 × 14,432.50
  4. Step 4: Simplify right side
    55,985.50x = 1,212,039,473.78
  5. Step 5: Solve for x
    x = 1,212,039,473.78/55,985.50
  6. Step 6: Final answer
    x = 21,649.17

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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.