Home / 70,343.02-105,472.81-28,243.07

Finding the Fourth Proportional to 70,343.02, 105,472.81 and 28,243.07

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Solution

The fourth proportional to 70,343.02, 105,472.81 and 28,243.07 is: 42,347.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,343.02 : 105,472.81 = 28,243.07 : x
  2. Step 2: Convert to fraction form
    70,343.02/105,472.81 = 28,243.07/x
  3. Step 3: Cross multiply
    70,343.02x = 105,472.81 × 28,243.07
  4. Step 4: Simplify right side
    70,343.02x = 2,978,875,955.93
  5. Step 5: Solve for x
    x = 2,978,875,955.93/70,343.02
  6. Step 6: Final answer
    x = 42,347.85

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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.