Home / 74,087.61-102,240.12-40,095.36

Finding the Fourth Proportional to 74,087.61, 102,240.12 and 40,095.36

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Solution

The fourth proportional to 74,087.61, 102,240.12 and 40,095.36 is: 55,331.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,087.61 : 102,240.12 = 40,095.36 : x
  2. Step 2: Convert to fraction form
    74,087.61/102,240.12 = 40,095.36/x
  3. Step 3: Cross multiply
    74,087.61x = 102,240.12 × 40,095.36
  4. Step 4: Simplify right side
    74,087.61x = 4,099,354,417.84
  5. Step 5: Solve for x
    x = 4,099,354,417.84/74,087.61
  6. Step 6: Final answer
    x = 55,331.17

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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.