Home / 77,178.60-106,518.78-45,355.32

Finding the Fourth Proportional to 77,178.60, 106,518.78 and 45,355.32

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Solution

The fourth proportional to 77,178.60, 106,518.78 and 45,355.32 is: 62,597.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,178.60 : 106,518.78 = 45,355.32 : x
  2. Step 2: Convert to fraction form
    77,178.60/106,518.78 = 45,355.32/x
  3. Step 3: Cross multiply
    77,178.60x = 106,518.78 × 45,355.32
  4. Step 4: Simplify right side
    77,178.60x = 4,831,193,352.91
  5. Step 5: Solve for x
    x = 4,831,193,352.91/77,178.60
  6. Step 6: Final answer
    x = 62,597.58

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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.