Home / 70,541.51-105,839.81-31,070.96

Finding the Fourth Proportional to 70,541.51, 105,839.81 and 31,070.96

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Solution

The fourth proportional to 70,541.51, 105,839.81 and 31,070.96 is: 46,618.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,541.51 : 105,839.81 = 31,070.96 : x
  2. Step 2: Convert to fraction form
    70,541.51/105,839.81 = 31,070.96/x
  3. Step 3: Cross multiply
    70,541.51x = 105,839.81 × 31,070.96
  4. Step 4: Simplify right side
    70,541.51x = 3,288,544,051.40
  5. Step 5: Solve for x
    x = 3,288,544,051.40/70,541.51
  6. Step 6: Final answer
    x = 46,618.56

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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.