Home / 74,510.20-102,798.90-42,241.36

Finding the Fourth Proportional to 74,510.20, 102,798.90 and 42,241.36

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Solution

The fourth proportional to 74,510.20, 102,798.90 and 42,241.36 is: 58,278.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,510.20 : 102,798.90 = 42,241.36 : x
  2. Step 2: Convert to fraction form
    74,510.20/102,798.90 = 42,241.36/x
  3. Step 3: Cross multiply
    74,510.20x = 102,798.90 × 42,241.36
  4. Step 4: Simplify right side
    74,510.20x = 4,342,365,342.50
  5. Step 5: Solve for x
    x = 4,342,365,342.50/74,510.20
  6. Step 6: Final answer
    x = 58,278.80

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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.