Home / 88,298.28-121,838.25-54,312.30

Finding the Fourth Proportional to 88,298.28, 121,838.25 and 54,312.30

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Solution

The fourth proportional to 88,298.28, 121,838.25 and 54,312.30 is: 74,942.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,298.28 : 121,838.25 = 54,312.30 : x
  2. Step 2: Convert to fraction form
    88,298.28/121,838.25 = 54,312.30/x
  3. Step 3: Cross multiply
    88,298.28x = 121,838.25 × 54,312.30
  4. Step 4: Simplify right side
    88,298.28x = 6,617,315,585.48
  5. Step 5: Solve for x
    x = 6,617,315,585.48/88,298.28
  6. Step 6: Final answer
    x = 74,942.75

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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.