Home / 55,938.77-83,905.41-20,875.70

Finding the Fourth Proportional to 55,938.77, 83,905.41 and 20,875.70

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Solution

The fourth proportional to 55,938.77, 83,905.41 and 20,875.70 is: 31,312.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,938.77 : 83,905.41 = 20,875.70 : x
  2. Step 2: Convert to fraction form
    55,938.77/83,905.41 = 20,875.70/x
  3. Step 3: Cross multiply
    55,938.77x = 83,905.41 × 20,875.70
  4. Step 4: Simplify right side
    55,938.77x = 1,751,583,748.01
  5. Step 5: Solve for x
    x = 1,751,583,748.01/55,938.77
  6. Step 6: Final answer
    x = 31,312.52

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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.