Home / 74,191.40-102,384.26-40,200.18

Finding the Fourth Proportional to 74,191.40, 102,384.26 and 40,200.18

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Solution

The fourth proportional to 74,191.40, 102,384.26 and 40,200.18 is: 55,476.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,191.40 : 102,384.26 = 40,200.18 : x
  2. Step 2: Convert to fraction form
    74,191.40/102,384.26 = 40,200.18/x
  3. Step 3: Cross multiply
    74,191.40x = 102,384.26 × 40,200.18
  4. Step 4: Simplify right side
    74,191.40x = 4,115,865,681.17
  5. Step 5: Solve for x
    x = 4,115,865,681.17/74,191.40
  6. Step 6: Final answer
    x = 55,476.32

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1.5x scale

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.