Home / 81,296.35-112,139.85-53,701.18

Finding the Fourth Proportional to 81,296.35, 112,139.85 and 53,701.18

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Solution

The fourth proportional to 81,296.35, 112,139.85 and 53,701.18 is: 74,075.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,296.35 : 112,139.85 = 53,701.18 : x
  2. Step 2: Convert to fraction form
    81,296.35/112,139.85 = 53,701.18/x
  3. Step 3: Cross multiply
    81,296.35x = 112,139.85 × 53,701.18
  4. Step 4: Simplify right side
    81,296.35x = 6,022,042,270.02
  5. Step 5: Solve for x
    x = 6,022,042,270.02/81,296.35
  6. Step 6: Final answer
    x = 74,075.19

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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.