Home / 93,051.12-128,411.37-55,318.08

Finding the Fourth Proportional to 93,051.12, 128,411.37 and 55,318.08

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Solution

The fourth proportional to 93,051.12, 128,411.37 and 55,318.08 is: 76,339.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,051.12 : 128,411.37 = 55,318.08 : x
  2. Step 2: Convert to fraction form
    93,051.12/128,411.37 = 55,318.08/x
  3. Step 3: Cross multiply
    93,051.12x = 128,411.37 × 55,318.08
  4. Step 4: Simplify right side
    93,051.12x = 7,103,470,438.57
  5. Step 5: Solve for x
    x = 7,103,470,438.57/93,051.12
  6. Step 6: Final answer
    x = 76,339.44

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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.