Home / 88,142.40-121,636.51-47,856.17

Finding the Fourth Proportional to 88,142.40, 121,636.51 and 47,856.17

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Solution

The fourth proportional to 88,142.40, 121,636.51 and 47,856.17 is: 66,041.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,142.40 : 121,636.51 = 47,856.17 : x
  2. Step 2: Convert to fraction form
    88,142.40/121,636.51 = 47,856.17/x
  3. Step 3: Cross multiply
    88,142.40x = 121,636.51 × 47,856.17
  4. Step 4: Simplify right side
    88,142.40x = 5,821,057,500.77
  5. Step 5: Solve for x
    x = 5,821,057,500.77/88,142.40
  6. Step 6: Final answer
    x = 66,041.51

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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.