Home / 93,091.20-139,636.80-55,766.40

Finding the Fourth Proportional to 93,091.20, 139,636.80 and 55,766.40

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Solution

The fourth proportional to 93,091.20, 139,636.80 and 55,766.40 is: 83,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,091.20 : 139,636.80 = 55,766.40 : x
  2. Step 2: Convert to fraction form
    93,091.20/139,636.80 = 55,766.40/x
  3. Step 3: Cross multiply
    93,091.20x = 139,636.80 × 55,766.40
  4. Step 4: Simplify right side
    93,091.20x = 7,787,041,643.52
  5. Step 5: Solve for x
    x = 7,787,041,643.52/93,091.20
  6. Step 6: Final answer
    x = 83,649.60

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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.