Home / 64,272.08-88,705.76-49,135.60

Finding the Fourth Proportional to 64,272.08, 88,705.76 and 49,135.60

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Solution

The fourth proportional to 64,272.08, 88,705.76 and 49,135.60 is: 67,814.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,272.08 : 88,705.76 = 49,135.60 : x
  2. Step 2: Convert to fraction form
    64,272.08/88,705.76 = 49,135.60/x
  3. Step 3: Cross multiply
    64,272.08x = 88,705.76 × 49,135.60
  4. Step 4: Simplify right side
    64,272.08x = 4,358,610,741.06
  5. Step 5: Solve for x
    x = 4,358,610,741.06/64,272.08
  6. Step 6: Final answer
    x = 67,814.99

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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.