Home / 88,396.64-121,965.34-56,119.04

Finding the Fourth Proportional to 88,396.64, 121,965.34 and 56,119.04

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Solution

The fourth proportional to 88,396.64, 121,965.34 and 56,119.04 is: 77,430.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,396.64 : 121,965.34 = 56,119.04 : x
  2. Step 2: Convert to fraction form
    88,396.64/121,965.34 = 56,119.04/x
  3. Step 3: Cross multiply
    88,396.64x = 121,965.34 × 56,119.04
  4. Step 4: Simplify right side
    88,396.64x = 6,844,577,794.07
  5. Step 5: Solve for x
    x = 6,844,577,794.07/88,396.64
  6. Step 6: Final answer
    x = 77,430.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.