Home / 75,128.58-103,677.48-46,834.38

Finding the Fourth Proportional to 75,128.58, 103,677.48 and 46,834.38

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Solution

The fourth proportional to 75,128.58, 103,677.48 and 46,834.38 is: 64,631.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,128.58 : 103,677.48 = 46,834.38 : x
  2. Step 2: Convert to fraction form
    75,128.58/103,677.48 = 46,834.38/x
  3. Step 3: Cross multiply
    75,128.58x = 103,677.48 × 46,834.38
  4. Step 4: Simplify right side
    75,128.58x = 4,855,670,495.76
  5. Step 5: Solve for x
    x = 4,855,670,495.76/75,128.58
  6. Step 6: Final answer
    x = 64,631.47

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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.