Home / 74,986.65-103,484.70-43,155.63

Finding the Fourth Proportional to 74,986.65, 103,484.70 and 43,155.63

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Solution

The fourth proportional to 74,986.65, 103,484.70 and 43,155.63 is: 59,556.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,986.65 : 103,484.70 = 43,155.63 : x
  2. Step 2: Convert to fraction form
    74,986.65/103,484.70 = 43,155.63/x
  3. Step 3: Cross multiply
    74,986.65x = 103,484.70 × 43,155.63
  4. Step 4: Simplify right side
    74,986.65x = 4,465,947,423.86
  5. Step 5: Solve for x
    x = 4,465,947,423.86/74,986.65
  6. Step 6: Final answer
    x = 59,556.57

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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.