Home / 70,246.90-105,264.24-28,085.32

Finding the Fourth Proportional to 70,246.90, 105,264.24 and 28,085.32

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Solution

The fourth proportional to 70,246.90, 105,264.24 and 28,085.32 is: 42,085.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,246.90 : 105,264.24 = 28,085.32 : x
  2. Step 2: Convert to fraction form
    70,246.90/105,264.24 = 28,085.32/x
  3. Step 3: Cross multiply
    70,246.90x = 105,264.24 × 28,085.32
  4. Step 4: Simplify right side
    70,246.90x = 2,956,379,864.96
  5. Step 5: Solve for x
    x = 2,956,379,864.96/70,246.90
  6. Step 6: Final answer
    x = 42,085.56

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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.