Home / 88,145.22-121,595.28-56,280.60

Finding the Fourth Proportional to 88,145.22, 121,595.28 and 56,280.60

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Solution

The fourth proportional to 88,145.22, 121,595.28 and 56,280.60 is: 77,638.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,145.22 : 121,595.28 = 56,280.60 : x
  2. Step 2: Convert to fraction form
    88,145.22/121,595.28 = 56,280.60/x
  3. Step 3: Cross multiply
    88,145.22x = 121,595.28 × 56,280.60
  4. Step 4: Simplify right side
    88,145.22x = 6,843,455,315.57
  5. Step 5: Solve for x
    x = 6,843,455,315.57/88,145.22
  6. Step 6: Final answer
    x = 77,638.42

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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.