Home / 74,806.61-103,237.07-42,977.57

Finding the Fourth Proportional to 74,806.61, 103,237.07 and 42,977.57

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Solution

The fourth proportional to 74,806.61, 103,237.07 and 42,977.57 is: 59,311.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,806.61 : 103,237.07 = 42,977.57 : x
  2. Step 2: Convert to fraction form
    74,806.61/103,237.07 = 42,977.57/x
  3. Step 3: Cross multiply
    74,806.61x = 103,237.07 × 42,977.57
  4. Step 4: Simplify right side
    74,806.61x = 4,436,877,671.45
  5. Step 5: Solve for x
    x = 4,436,877,671.45/74,806.61
  6. Step 6: Final answer
    x = 59,311.31

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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.