Home / 165,085.40-247,628.10-40,426.40

Finding the Fourth Proportional to 165,085.40, 247,628.10 and 40,426.40

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Solution

The fourth proportional to 165,085.40, 247,628.10 and 40,426.40 is: 60,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,085.40 : 247,628.10 = 40,426.40 : x
  2. Step 2: Convert to fraction form
    165,085.40/247,628.10 = 40,426.40/x
  3. Step 3: Cross multiply
    165,085.40x = 247,628.10 × 40,426.40
  4. Step 4: Simplify right side
    165,085.40x = 10,010,712,621.84
  5. Step 5: Solve for x
    x = 10,010,712,621.84/165,085.40
  6. Step 6: Final answer
    x = 60,639.60

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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.