Home / 90,225.64-135,355.74-31,047.40

Finding the Fourth Proportional to 90,225.64, 135,355.74 and 31,047.40

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Solution

The fourth proportional to 90,225.64, 135,355.74 and 31,047.40 is: 46,577.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,225.64 : 135,355.74 = 31,047.40 : x
  2. Step 2: Convert to fraction form
    90,225.64/135,355.74 = 31,047.40/x
  3. Step 3: Cross multiply
    90,225.64x = 135,355.74 × 31,047.40
  4. Step 4: Simplify right side
    90,225.64x = 4,202,443,802.08
  5. Step 5: Solve for x
    x = 4,202,443,802.08/90,225.64
  6. Step 6: Final answer
    x = 46,577.05

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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.