Home / 51,875.20-77,812.80-49,688.20

Finding the Fourth Proportional to 51,875.20, 77,812.80 and 49,688.20

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Solution

The fourth proportional to 51,875.20, 77,812.80 and 49,688.20 is: 74,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,875.20 : 77,812.80 = 49,688.20 : x
  2. Step 2: Convert to fraction form
    51,875.20/77,812.80 = 49,688.20/x
  3. Step 3: Cross multiply
    51,875.20x = 77,812.80 × 49,688.20
  4. Step 4: Simplify right side
    51,875.20x = 3,866,377,968.96
  5. Step 5: Solve for x
    x = 3,866,377,968.96/51,875.20
  6. Step 6: Final answer
    x = 74,532.30

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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.