Home / 64,690.47-96,906.53-51,386.00

Finding the Fourth Proportional to 64,690.47, 96,906.53 and 51,386.00

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Solution

The fourth proportional to 64,690.47, 96,906.53 and 51,386.00 is: 76,976.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,690.47 : 96,906.53 = 51,386.00 : x
  2. Step 2: Convert to fraction form
    64,690.47/96,906.53 = 51,386.00/x
  3. Step 3: Cross multiply
    64,690.47x = 96,906.53 × 51,386.00
  4. Step 4: Simplify right side
    64,690.47x = 4,979,638,594.51
  5. Step 5: Solve for x
    x = 4,979,638,594.51/64,690.47
  6. Step 6: Final answer
    x = 76,976.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.