Home / 77,643.20-116,464.80-25,054.40

Finding the Fourth Proportional to 77,643.20, 116,464.80 and 25,054.40

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Solution

The fourth proportional to 77,643.20, 116,464.80 and 25,054.40 is: 37,581.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,643.20 : 116,464.80 = 25,054.40 : x
  2. Step 2: Convert to fraction form
    77,643.20/116,464.80 = 25,054.40/x
  3. Step 3: Cross multiply
    77,643.20x = 116,464.80 × 25,054.40
  4. Step 4: Simplify right side
    77,643.20x = 2,917,955,685.12
  5. Step 5: Solve for x
    x = 2,917,955,685.12/77,643.20
  6. Step 6: Final answer
    x = 37,581.60

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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.