Home / 55,128.48-76,112.40-36,298.08

Finding the Fourth Proportional to 55,128.48, 76,112.40 and 36,298.08

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Solution

The fourth proportional to 55,128.48, 76,112.40 and 36,298.08 is: 50,114.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,128.48 : 76,112.40 = 36,298.08 : x
  2. Step 2: Convert to fraction form
    55,128.48/76,112.40 = 36,298.08/x
  3. Step 3: Cross multiply
    55,128.48x = 76,112.40 × 36,298.08
  4. Step 4: Simplify right side
    55,128.48x = 2,762,733,984.19
  5. Step 5: Solve for x
    x = 2,762,733,984.19/55,128.48
  6. Step 6: Final answer
    x = 50,114.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.