Home / 88,140.96-121,632.48-47,854.80

Finding the Fourth Proportional to 88,140.96, 121,632.48 and 47,854.80

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Solution

The fourth proportional to 88,140.96, 121,632.48 and 47,854.80 is: 66,038.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,140.96 : 121,632.48 = 47,854.80 : x
  2. Step 2: Convert to fraction form
    88,140.96/121,632.48 = 47,854.80/x
  3. Step 3: Cross multiply
    88,140.96x = 121,632.48 × 47,854.80
  4. Step 4: Simplify right side
    88,140.96x = 5,820,698,003.90
  5. Step 5: Solve for x
    x = 5,820,698,003.90/88,140.96
  6. Step 6: Final answer
    x = 66,038.51

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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.