Home / 74,206.84-102,405.82-40,215.32

Finding the Fourth Proportional to 74,206.84, 102,405.82 and 40,215.32

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Solution

The fourth proportional to 74,206.84, 102,405.82 and 40,215.32 is: 55,497.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,206.84 : 102,405.82 = 40,215.32 : x
  2. Step 2: Convert to fraction form
    74,206.84/102,405.82 = 40,215.32/x
  3. Step 3: Cross multiply
    74,206.84x = 102,405.82 × 40,215.32
  4. Step 4: Simplify right side
    74,206.84x = 4,118,282,821.16
  5. Step 5: Solve for x
    x = 4,118,282,821.16/74,206.84
  6. Step 6: Final answer
    x = 55,497.35

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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.