Home / 70,432.02-105,741.89-40,871.07

Finding the Fourth Proportional to 70,432.02, 105,741.89 and 40,871.07

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Solution

The fourth proportional to 70,432.02, 105,741.89 and 40,871.07 is: 61,361.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,432.02 : 105,741.89 = 40,871.07 : x
  2. Step 2: Convert to fraction form
    70,432.02/105,741.89 = 40,871.07/x
  3. Step 3: Cross multiply
    70,432.02x = 105,741.89 × 40,871.07
  4. Step 4: Simplify right side
    70,432.02x = 4,321,783,983.77
  5. Step 5: Solve for x
    x = 4,321,783,983.77/70,432.02
  6. Step 6: Final answer
    x = 61,361.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.