Home / 74,989.40-103,485.47-43,158.29

Finding the Fourth Proportional to 74,989.40, 103,485.47 and 43,158.29

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Solution

The fourth proportional to 74,989.40, 103,485.47 and 43,158.29 is: 59,558.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,989.40 : 103,485.47 = 43,158.29 : x
  2. Step 2: Convert to fraction form
    74,989.40/103,485.47 = 43,158.29/x
  3. Step 3: Cross multiply
    74,989.40x = 103,485.47 × 43,158.29
  4. Step 4: Simplify right side
    74,989.40x = 4,466,255,191.83
  5. Step 5: Solve for x
    x = 4,466,255,191.83/74,989.40
  6. Step 6: Final answer
    x = 59,558.49

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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.