Home / 88,090.85-121,565.69-47,804.60

Finding the Fourth Proportional to 88,090.85, 121,565.69 and 47,804.60

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Solution

The fourth proportional to 88,090.85, 121,565.69 and 47,804.60 is: 65,970.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,090.85 : 121,565.69 = 47,804.60 : x
  2. Step 2: Convert to fraction form
    88,090.85/121,565.69 = 47,804.60/x
  3. Step 3: Cross multiply
    88,090.85x = 121,565.69 × 47,804.60
  4. Step 4: Simplify right side
    88,090.85x = 5,811,398,337.32
  5. Step 5: Solve for x
    x = 5,811,398,337.32/88,090.85
  6. Step 6: Final answer
    x = 65,970.51

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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.