Home / 92,856.46-128,143.33-50,415

Finding the Fourth Proportional to 92,856.46, 128,143.33 and 50,415

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Solution

The fourth proportional to 92,856.46, 128,143.33 and 50,415 is: 69,573.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,856.46 : 128,143.33 = 50,415 : x
  2. Step 2: Convert to fraction form
    92,856.46/128,143.33 = 50,415/x
  3. Step 3: Cross multiply
    92,856.46x = 128,143.33 × 50,415
  4. Step 4: Simplify right side
    92,856.46x = 6,460,345,981.95
  5. Step 5: Solve for x
    x = 6,460,345,981.95/92,856.46
  6. Step 6: Final answer
    x = 69,573.47

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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.