Home / 78,377.02-117,564.90-46,576.48

Finding the Fourth Proportional to 78,377.02, 117,564.90 and 46,576.48

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Solution

The fourth proportional to 78,377.02, 117,564.90 and 46,576.48 is: 69,864.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,377.02 : 117,564.90 = 46,576.48 : x
  2. Step 2: Convert to fraction form
    78,377.02/117,564.90 = 46,576.48/x
  3. Step 3: Cross multiply
    78,377.02x = 117,564.90 × 46,576.48
  4. Step 4: Simplify right side
    78,377.02x = 5,475,759,360.51
  5. Step 5: Solve for x
    x = 5,475,759,360.51/78,377.02
  6. Step 6: Final answer
    x = 69,864.35

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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.