Home / 88,130.78-121,607.60-50,397.74

Finding the Fourth Proportional to 88,130.78, 121,607.60 and 50,397.74

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Solution

The fourth proportional to 88,130.78, 121,607.60 and 50,397.74 is: 69,541.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,130.78 : 121,607.60 = 50,397.74 : x
  2. Step 2: Convert to fraction form
    88,130.78/121,607.60 = 50,397.74/x
  3. Step 3: Cross multiply
    88,130.78x = 121,607.60 × 50,397.74
  4. Step 4: Simplify right side
    88,130.78x = 6,128,747,346.80
  5. Step 5: Solve for x
    x = 6,128,747,346.80/88,130.78
  6. Step 6: Final answer
    x = 69,541.51

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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.