Home / 74,031.76-102,157.77-42,194.71

Finding the Fourth Proportional to 74,031.76, 102,157.77 and 42,194.71

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Solution

The fourth proportional to 74,031.76, 102,157.77 and 42,194.71 is: 58,225.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,031.76 : 102,157.77 = 42,194.71 : x
  2. Step 2: Convert to fraction form
    74,031.76/102,157.77 = 42,194.71/x
  3. Step 3: Cross multiply
    74,031.76x = 102,157.77 × 42,194.71
  4. Step 4: Simplify right side
    74,031.76x = 4,310,517,479.40
  5. Step 5: Solve for x
    x = 4,310,517,479.40/74,031.76
  6. Step 6: Final answer
    x = 58,225.25

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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.