Home / 88,325.85-121,842.36-61,421.66

Finding the Fourth Proportional to 88,325.85, 121,842.36 and 61,421.66

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Solution

The fourth proportional to 88,325.85, 121,842.36 and 61,421.66 is: 84,728.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,325.85 : 121,842.36 = 61,421.66 : x
  2. Step 2: Convert to fraction form
    88,325.85/121,842.36 = 61,421.66/x
  3. Step 3: Cross multiply
    88,325.85x = 121,842.36 × 61,421.66
  4. Step 4: Simplify right side
    88,325.85x = 7,483,759,400.31
  5. Step 5: Solve for x
    x = 7,483,759,400.31/88,325.85
  6. Step 6: Final answer
    x = 84,728.98

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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.