Home / 88,155.29-121,653.85-47,868.70

Finding the Fourth Proportional to 88,155.29, 121,653.85 and 47,868.70

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Solution

The fourth proportional to 88,155.29, 121,653.85 and 47,868.70 is: 66,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,155.29 : 121,653.85 = 47,868.70 : x
  2. Step 2: Convert to fraction form
    88,155.29/121,653.85 = 47,868.70/x
  3. Step 3: Cross multiply
    88,155.29x = 121,653.85 × 47,868.70
  4. Step 4: Simplify right side
    88,155.29x = 5,823,411,201.39
  5. Step 5: Solve for x
    x = 5,823,411,201.39/88,155.29
  6. Step 6: Final answer
    x = 66,058.56

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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.