Home / 38,075.60-57,123-30,746.64

Finding the Fourth Proportional to 38,075.60, 57,123 and 30,746.64

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Solution

The fourth proportional to 38,075.60, 57,123 and 30,746.64 is: 46,127.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,075.60 : 57,123 = 30,746.64 : x
  2. Step 2: Convert to fraction form
    38,075.60/57,123 = 30,746.64/x
  3. Step 3: Cross multiply
    38,075.60x = 57,123 × 30,746.64
  4. Step 4: Simplify right side
    38,075.60x = 1,756,340,316.72
  5. Step 5: Solve for x
    x = 1,756,340,316.72/38,075.60
  6. Step 6: Final answer
    x = 46,127.71

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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.