Home / 90,303.95-135,482.66-31,145.60

Finding the Fourth Proportional to 90,303.95, 135,482.66 and 31,145.60

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Solution

The fourth proportional to 90,303.95, 135,482.66 and 31,145.60 is: 46,727.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,303.95 : 135,482.66 = 31,145.60 : x
  2. Step 2: Convert to fraction form
    90,303.95/135,482.66 = 31,145.60/x
  3. Step 3: Cross multiply
    90,303.95x = 135,482.66 × 31,145.60
  4. Step 4: Simplify right side
    90,303.95x = 4,219,689,035.07
  5. Step 5: Solve for x
    x = 4,219,689,035.07/90,303.95
  6. Step 6: Final answer
    x = 46,727.62

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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.