Home / 90,627.36-125,075.56-54,837.10

Finding the Fourth Proportional to 90,627.36, 125,075.56 and 54,837.10

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Solution

The fourth proportional to 90,627.36, 125,075.56 and 54,837.10 is: 75,681.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,627.36 : 125,075.56 = 54,837.10 : x
  2. Step 2: Convert to fraction form
    90,627.36/125,075.56 = 54,837.10/x
  3. Step 3: Cross multiply
    90,627.36x = 125,075.56 × 54,837.10
  4. Step 4: Simplify right side
    90,627.36x = 6,858,780,991.28
  5. Step 5: Solve for x
    x = 6,858,780,991.28/90,627.36
  6. Step 6: Final answer
    x = 75,681.13

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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.