Home / 74,341.53-111,515.72-21,037.50

Finding the Fourth Proportional to 74,341.53, 111,515.72 and 21,037.50

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Solution

The fourth proportional to 74,341.53, 111,515.72 and 21,037.50 is: 31,557.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,341.53 : 111,515.72 = 21,037.50 : x
  2. Step 2: Convert to fraction form
    74,341.53/111,515.72 = 21,037.50/x
  3. Step 3: Cross multiply
    74,341.53x = 111,515.72 × 21,037.50
  4. Step 4: Simplify right side
    74,341.53x = 2,346,011,854.31
  5. Step 5: Solve for x
    x = 2,346,011,854.31/74,341.53
  6. Step 6: Final answer
    x = 31,557.22

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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.