Home / 55,385.50-83,121.64-38,636.58

Finding the Fourth Proportional to 55,385.50, 83,121.64 and 38,636.58

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Solution

The fourth proportional to 55,385.50, 83,121.64 and 38,636.58 is: 57,985.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,385.50 : 83,121.64 = 38,636.58 : x
  2. Step 2: Convert to fraction form
    55,385.50/83,121.64 = 38,636.58/x
  3. Step 3: Cross multiply
    55,385.50x = 83,121.64 × 38,636.58
  4. Step 4: Simplify right side
    55,385.50x = 3,211,535,893.59
  5. Step 5: Solve for x
    x = 3,211,535,893.59/55,385.50
  6. Step 6: Final answer
    x = 57,985.14

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1.5x scale

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.