Home / 74,164.12-102,364.80-42,351.48

Finding the Fourth Proportional to 74,164.12, 102,364.80 and 42,351.48

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Solution

The fourth proportional to 74,164.12, 102,364.80 and 42,351.48 is: 58,455.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,164.12 : 102,364.80 = 42,351.48 : x
  2. Step 2: Convert to fraction form
    74,164.12/102,364.80 = 42,351.48/x
  3. Step 3: Cross multiply
    74,164.12x = 102,364.80 × 42,351.48
  4. Step 4: Simplify right side
    74,164.12x = 4,335,300,779.90
  5. Step 5: Solve for x
    x = 4,335,300,779.90/74,164.12
  6. Step 6: Final answer
    x = 58,455.50

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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.