Home / 42,965.74-64,386.33-30,510.19

Finding the Fourth Proportional to 42,965.74, 64,386.33 and 30,510.19

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Solution

The fourth proportional to 42,965.74, 64,386.33 and 30,510.19 is: 45,721.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,965.74 : 64,386.33 = 30,510.19 : x
  2. Step 2: Convert to fraction form
    42,965.74/64,386.33 = 30,510.19/x
  3. Step 3: Cross multiply
    42,965.74x = 64,386.33 × 30,510.19
  4. Step 4: Simplify right side
    42,965.74x = 1,964,439,161.70
  5. Step 5: Solve for x
    x = 1,964,439,161.70/42,965.74
  6. Step 6: Final answer
    x = 45,721.06

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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.