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Finding the Fourth Proportional to 70,172.60, 105,518.10 and 58,767.80

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Solution

The fourth proportional to 70,172.60, 105,518.10 and 58,767.80 is: 88,368.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,172.60 : 105,518.10 = 58,767.80 : x
  2. Step 2: Convert to fraction form
    70,172.60/105,518.10 = 58,767.80/x
  3. Step 3: Cross multiply
    70,172.60x = 105,518.10 × 58,767.80
  4. Step 4: Simplify right side
    70,172.60x = 6,201,066,597.18
  5. Step 5: Solve for x
    x = 6,201,066,597.18/70,172.60
  6. Step 6: Final answer
    x = 88,368.77

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.