Home / 93,429.68-128,928.93-53,137.76

Finding the Fourth Proportional to 93,429.68, 128,928.93 and 53,137.76

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Solution

The fourth proportional to 93,429.68, 128,928.93 and 53,137.76 is: 73,327.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,429.68 : 128,928.93 = 53,137.76 : x
  2. Step 2: Convert to fraction form
    93,429.68/128,928.93 = 53,137.76/x
  3. Step 3: Cross multiply
    93,429.68x = 128,928.93 × 53,137.76
  4. Step 4: Simplify right side
    93,429.68x = 6,850,994,539.40
  5. Step 5: Solve for x
    x = 6,850,994,539.40/93,429.68
  6. Step 6: Final answer
    x = 73,327.82

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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.