Home / 89,075.08-122,810.34-63,611.92

Finding the Fourth Proportional to 89,075.08, 122,810.34 and 63,611.92

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Solution

The fourth proportional to 89,075.08, 122,810.34 and 63,611.92 is: 87,703.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,075.08 : 122,810.34 = 63,611.92 : x
  2. Step 2: Convert to fraction form
    89,075.08/122,810.34 = 63,611.92/x
  3. Step 3: Cross multiply
    89,075.08x = 122,810.34 × 63,611.92
  4. Step 4: Simplify right side
    89,075.08x = 7,812,201,523.25
  5. Step 5: Solve for x
    x = 7,812,201,523.25/89,075.08
  6. Step 6: Final answer
    x = 87,703.56

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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.