Home / 90,574.32-135,870.12-35,174.64

Finding the Fourth Proportional to 90,574.32, 135,870.12 and 35,174.64

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Solution

The fourth proportional to 90,574.32, 135,870.12 and 35,174.64 is: 52,765.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,574.32 : 135,870.12 = 35,174.64 : x
  2. Step 2: Convert to fraction form
    90,574.32/135,870.12 = 35,174.64/x
  3. Step 3: Cross multiply
    90,574.32x = 135,870.12 × 35,174.64
  4. Step 4: Simplify right side
    90,574.32x = 4,779,182,557.76
  5. Step 5: Solve for x
    x = 4,779,182,557.76/90,574.32
  6. Step 6: Final answer
    x = 52,765.32

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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.