Home / 74,779.02-103,201.20-42,958.17

Finding the Fourth Proportional to 74,779.02, 103,201.20 and 42,958.17

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Solution

The fourth proportional to 74,779.02, 103,201.20 and 42,958.17 is: 59,285.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,779.02 : 103,201.20 = 42,958.17 : x
  2. Step 2: Convert to fraction form
    74,779.02/103,201.20 = 42,958.17/x
  3. Step 3: Cross multiply
    74,779.02x = 103,201.20 × 42,958.17
  4. Step 4: Simplify right side
    74,779.02x = 4,433,334,693.80
  5. Step 5: Solve for x
    x = 4,433,334,693.80/74,779.02
  6. Step 6: Final answer
    x = 59,285.81

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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.