Home / 56,988.09-85,429.87-21,901.32

Finding the Fourth Proportional to 56,988.09, 85,429.87 and 21,901.32

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Solution

The fourth proportional to 56,988.09, 85,429.87 and 21,901.32 is: 32,831.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,988.09 : 85,429.87 = 21,901.32 : x
  2. Step 2: Convert to fraction form
    56,988.09/85,429.87 = 21,901.32/x
  3. Step 3: Cross multiply
    56,988.09x = 85,429.87 × 21,901.32
  4. Step 4: Simplify right side
    56,988.09x = 1,871,026,865.68
  5. Step 5: Solve for x
    x = 1,871,026,865.68/56,988.09
  6. Step 6: Final answer
    x = 32,831.89

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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.