Home / 93,345.02-128,827.70-57,039.00

Finding the Fourth Proportional to 93,345.02, 128,827.70 and 57,039.00

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Solution

The fourth proportional to 93,345.02, 128,827.70 and 57,039.00 is: 78,720.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,345.02 : 128,827.70 = 57,039.00 : x
  2. Step 2: Convert to fraction form
    93,345.02/128,827.70 = 57,039.00/x
  3. Step 3: Cross multiply
    93,345.02x = 128,827.70 × 57,039.00
  4. Step 4: Simplify right side
    93,345.02x = 7,348,202,625.90
  5. Step 5: Solve for x
    x = 7,348,202,625.90/93,345.02
  6. Step 6: Final answer
    x = 78,720.89

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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.