Home / 74,740.79-103,146.39-42,911.73

Finding the Fourth Proportional to 74,740.79, 103,146.39 and 42,911.73

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Solution

The fourth proportional to 74,740.79, 103,146.39 and 42,911.73 is: 59,220.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,740.79 : 103,146.39 = 42,911.73 : x
  2. Step 2: Convert to fraction form
    74,740.79/103,146.39 = 42,911.73/x
  3. Step 3: Cross multiply
    74,740.79x = 103,146.39 × 42,911.73
  4. Step 4: Simplify right side
    74,740.79x = 4,426,190,038.15
  5. Step 5: Solve for x
    x = 4,426,190,038.15/74,740.79
  6. Step 6: Final answer
    x = 59,220.54

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1.5x scale

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.