Home / 65,095.21-89,670.75-55,503.85

Finding the Fourth Proportional to 65,095.21, 89,670.75 and 55,503.85

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Solution

The fourth proportional to 65,095.21, 89,670.75 and 55,503.85 is: 76,458.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,095.21 : 89,670.75 = 55,503.85 : x
  2. Step 2: Convert to fraction form
    65,095.21/89,670.75 = 55,503.85/x
  3. Step 3: Cross multiply
    65,095.21x = 89,670.75 × 55,503.85
  4. Step 4: Simplify right side
    65,095.21x = 4,977,071,857.39
  5. Step 5: Solve for x
    x = 4,977,071,857.39/65,095.21
  6. Step 6: Final answer
    x = 76,458.34

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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.