Home / 75,681.81-104,435.51-45,053.28

Finding the Fourth Proportional to 75,681.81, 104,435.51 and 45,053.28

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Solution

The fourth proportional to 75,681.81, 104,435.51 and 45,053.28 is: 62,170.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,681.81 : 104,435.51 = 45,053.28 : x
  2. Step 2: Convert to fraction form
    75,681.81/104,435.51 = 45,053.28/x
  3. Step 3: Cross multiply
    75,681.81x = 104,435.51 × 45,053.28
  4. Step 4: Simplify right side
    75,681.81x = 4,705,162,048.71
  5. Step 5: Solve for x
    x = 4,705,162,048.71/75,681.81
  6. Step 6: Final answer
    x = 62,170.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.