Home / 81,499.34-112,420.51-59,684.02

Finding the Fourth Proportional to 81,499.34, 112,420.51 and 59,684.02

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Solution

The fourth proportional to 81,499.34, 112,420.51 and 59,684.02 is: 82,328.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,499.34 : 112,420.51 = 59,684.02 : x
  2. Step 2: Convert to fraction form
    81,499.34/112,420.51 = 59,684.02/x
  3. Step 3: Cross multiply
    81,499.34x = 112,420.51 × 59,684.02
  4. Step 4: Simplify right side
    81,499.34x = 6,709,707,536.99
  5. Step 5: Solve for x
    x = 6,709,707,536.99/81,499.34
  6. Step 6: Final answer
    x = 82,328.36

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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.