Home / 85,525.56-128,312.10-35,629.20

Finding the Fourth Proportional to 85,525.56, 128,312.10 and 35,629.20

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Solution

The fourth proportional to 85,525.56, 128,312.10 and 35,629.20 is: 53,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,525.56 : 128,312.10 = 35,629.20 : x
  2. Step 2: Convert to fraction form
    85,525.56/128,312.10 = 35,629.20/x
  3. Step 3: Cross multiply
    85,525.56x = 128,312.10 × 35,629.20
  4. Step 4: Simplify right side
    85,525.56x = 4,571,657,473.32
  5. Step 5: Solve for x
    x = 4,571,657,473.32/85,525.56
  6. Step 6: Final answer
    x = 53,453.70

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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.