Home / 70,534.02-105,774.33-28,399.74

Finding the Fourth Proportional to 70,534.02, 105,774.33 and 28,399.74

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Solution

The fourth proportional to 70,534.02, 105,774.33 and 28,399.74 is: 42,588.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,534.02 : 105,774.33 = 28,399.74 : x
  2. Step 2: Convert to fraction form
    70,534.02/105,774.33 = 28,399.74/x
  3. Step 3: Cross multiply
    70,534.02x = 105,774.33 × 28,399.74
  4. Step 4: Simplify right side
    70,534.02x = 3,003,963,470.67
  5. Step 5: Solve for x
    x = 3,003,963,470.67/70,534.02
  6. Step 6: Final answer
    x = 42,588.86

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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.