Home / 84,085.83-126,166.95-31,499.28

Finding the Fourth Proportional to 84,085.83, 126,166.95 and 31,499.28

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Solution

The fourth proportional to 84,085.83, 126,166.95 and 31,499.28 is: 47,263.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,085.83 : 126,166.95 = 31,499.28 : x
  2. Step 2: Convert to fraction form
    84,085.83/126,166.95 = 31,499.28/x
  3. Step 3: Cross multiply
    84,085.83x = 126,166.95 × 31,499.28
  4. Step 4: Simplify right side
    84,085.83x = 3,974,168,084.80
  5. Step 5: Solve for x
    x = 3,974,168,084.80/84,085.83
  6. Step 6: Final answer
    x = 47,263.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.