Home / 91,028.32-136,560.96-38,437.60

Finding the Fourth Proportional to 91,028.32, 136,560.96 and 38,437.60

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Solution

The fourth proportional to 91,028.32, 136,560.96 and 38,437.60 is: 57,664.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,028.32 : 136,560.96 = 38,437.60 : x
  2. Step 2: Convert to fraction form
    91,028.32/136,560.96 = 38,437.60/x
  3. Step 3: Cross multiply
    91,028.32x = 136,560.96 × 38,437.60
  4. Step 4: Simplify right side
    91,028.32x = 5,249,075,556.10
  5. Step 5: Solve for x
    x = 5,249,075,556.10/91,028.32
  6. Step 6: Final answer
    x = 57,664.20

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1.5x scale

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.