Home / 57,075.55-78,758.89-38,641.16

Finding the Fourth Proportional to 57,075.55, 78,758.89 and 38,641.16

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Solution

The fourth proportional to 57,075.55, 78,758.89 and 38,641.16 is: 53,321.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,075.55 : 78,758.89 = 38,641.16 : x
  2. Step 2: Convert to fraction form
    57,075.55/78,758.89 = 38,641.16/x
  3. Step 3: Cross multiply
    57,075.55x = 78,758.89 × 38,641.16
  4. Step 4: Simplify right side
    57,075.55x = 3,043,334,548.60
  5. Step 5: Solve for x
    x = 3,043,334,548.60/57,075.55
  6. Step 6: Final answer
    x = 53,321.16

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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.