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Finding the Fourth Proportional to 66,873.60, 99,705.60 and 63,417.60

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Solution

The fourth proportional to 66,873.60, 99,705.60 and 63,417.60 is: 94,552.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,873.60 : 99,705.60 = 63,417.60 : x
  2. Step 2: Convert to fraction form
    66,873.60/99,705.60 = 63,417.60/x
  3. Step 3: Cross multiply
    66,873.60x = 99,705.60 × 63,417.60
  4. Step 4: Simplify right side
    66,873.60x = 6,323,089,858.56
  5. Step 5: Solve for x
    x = 6,323,089,858.56/66,873.60
  6. Step 6: Final answer
    x = 94,552.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.