Home / 81,213.48-112,075.02-47,242.08

Finding the Fourth Proportional to 81,213.48, 112,075.02 and 47,242.08

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Solution

The fourth proportional to 81,213.48, 112,075.02 and 47,242.08 is: 65,194.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,213.48 : 112,075.02 = 47,242.08 : x
  2. Step 2: Convert to fraction form
    81,213.48/112,075.02 = 47,242.08/x
  3. Step 3: Cross multiply
    81,213.48x = 112,075.02 × 47,242.08
  4. Step 4: Simplify right side
    81,213.48x = 5,294,657,060.84
  5. Step 5: Solve for x
    x = 5,294,657,060.84/81,213.48
  6. Step 6: Final answer
    x = 65,194.31

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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.