Home / 74,275.10-102,498.03-42,005.46

Finding the Fourth Proportional to 74,275.10, 102,498.03 and 42,005.46

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Solution

The fourth proportional to 74,275.10, 102,498.03 and 42,005.46 is: 57,966.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,275.10 : 102,498.03 = 42,005.46 : x
  2. Step 2: Convert to fraction form
    74,275.10/102,498.03 = 42,005.46/x
  3. Step 3: Cross multiply
    74,275.10x = 102,498.03 × 42,005.46
  4. Step 4: Simplify right side
    74,275.10x = 4,305,477,113.48
  5. Step 5: Solve for x
    x = 4,305,477,113.48/74,275.10
  6. Step 6: Final answer
    x = 57,966.63

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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.