Home / 92,712.52-139,088.14-30,378.12

Finding the Fourth Proportional to 92,712.52, 139,088.14 and 30,378.12

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Solution

The fourth proportional to 92,712.52, 139,088.14 and 30,378.12 is: 45,573.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,712.52 : 139,088.14 = 30,378.12 : x
  2. Step 2: Convert to fraction form
    92,712.52/139,088.14 = 30,378.12/x
  3. Step 3: Cross multiply
    92,712.52x = 139,088.14 × 30,378.12
  4. Step 4: Simplify right side
    92,712.52x = 4,225,236,207.50
  5. Step 5: Solve for x
    x = 4,225,236,207.50/92,712.52
  6. Step 6: Final answer
    x = 45,573.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.