Home / 81,795.06-112,876.50-45,985.23

Finding the Fourth Proportional to 81,795.06, 112,876.50 and 45,985.23

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Solution

The fourth proportional to 81,795.06, 112,876.50 and 45,985.23 is: 63,459.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,795.06 : 112,876.50 = 45,985.23 : x
  2. Step 2: Convert to fraction form
    81,795.06/112,876.50 = 45,985.23/x
  3. Step 3: Cross multiply
    81,795.06x = 112,876.50 × 45,985.23
  4. Step 4: Simplify right side
    81,795.06x = 5,190,651,814.10
  5. Step 5: Solve for x
    x = 5,190,651,814.10/81,795.06
  6. Step 6: Final answer
    x = 63,459.23

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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.