Home / 49,838.80-74,681.40-42,005.20

Finding the Fourth Proportional to 49,838.80, 74,681.40 and 42,005.20

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Solution

The fourth proportional to 49,838.80, 74,681.40 and 42,005.20 is: 62,943.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,838.80 : 74,681.40 = 42,005.20 : x
  2. Step 2: Convert to fraction form
    49,838.80/74,681.40 = 42,005.20/x
  3. Step 3: Cross multiply
    49,838.80x = 74,681.40 × 42,005.20
  4. Step 4: Simplify right side
    49,838.80x = 3,137,007,143.28
  5. Step 5: Solve for x
    x = 3,137,007,143.28/49,838.80
  6. Step 6: Final answer
    x = 62,943.07

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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.