Home / 93,085.12-128,429.04-52,796.80

Finding the Fourth Proportional to 93,085.12, 128,429.04 and 52,796.80

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Solution

The fourth proportional to 93,085.12, 128,429.04 and 52,796.80 is: 72,843.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,085.12 : 128,429.04 = 52,796.80 : x
  2. Step 2: Convert to fraction form
    93,085.12/128,429.04 = 52,796.80/x
  3. Step 3: Cross multiply
    93,085.12x = 128,429.04 × 52,796.80
  4. Step 4: Simplify right side
    93,085.12x = 6,780,642,339.07
  5. Step 5: Solve for x
    x = 6,780,642,339.07/93,085.12
  6. Step 6: Final answer
    x = 72,843.46

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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.