Home / 81,296.48-112,140.02-53,701.31

Finding the Fourth Proportional to 81,296.48, 112,140.02 and 53,701.31

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Solution

The fourth proportional to 81,296.48, 112,140.02 and 53,701.31 is: 74,075.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,296.48 : 112,140.02 = 53,701.31 : x
  2. Step 2: Convert to fraction form
    81,296.48/112,140.02 = 53,701.31/x
  3. Step 3: Cross multiply
    81,296.48x = 112,140.02 × 53,701.31
  4. Step 4: Simplify right side
    81,296.48x = 6,022,065,148.22
  5. Step 5: Solve for x
    x = 6,022,065,148.22/81,296.48
  6. Step 6: Final answer
    x = 74,075.35

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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.