Home / 70,272.22-105,237.69-38,633.98

Finding the Fourth Proportional to 70,272.22, 105,237.69 and 38,633.98

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Solution

The fourth proportional to 70,272.22, 105,237.69 and 38,633.98 is: 57,857.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,272.22 : 105,237.69 = 38,633.98 : x
  2. Step 2: Convert to fraction form
    70,272.22/105,237.69 = 38,633.98/x
  3. Step 3: Cross multiply
    70,272.22x = 105,237.69 × 38,633.98
  4. Step 4: Simplify right side
    70,272.22x = 4,065,750,810.71
  5. Step 5: Solve for x
    x = 4,065,750,810.71/70,272.22
  6. Step 6: Final answer
    x = 57,857.16

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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.