Home / 102,619.80-153,914.31-32,490

Finding the Fourth Proportional to 102,619.80, 153,914.31 and 32,490

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Solution

The fourth proportional to 102,619.80, 153,914.31 and 32,490 is: 48,730.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,619.80 : 153,914.31 = 32,490 : x
  2. Step 2: Convert to fraction form
    102,619.80/153,914.31 = 32,490/x
  3. Step 3: Cross multiply
    102,619.80x = 153,914.31 × 32,490
  4. Step 4: Simplify right side
    102,619.80x = 5,000,675,931.90
  5. Step 5: Solve for x
    x = 5,000,675,931.90/102,619.80
  6. Step 6: Final answer
    x = 48,730.13

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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.