Home / 62,878.72-86,739.12-47,746.30

Finding the Fourth Proportional to 62,878.72, 86,739.12 and 47,746.30

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Solution

The fourth proportional to 62,878.72, 86,739.12 and 47,746.30 is: 65,864.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,878.72 : 86,739.12 = 47,746.30 : x
  2. Step 2: Convert to fraction form
    62,878.72/86,739.12 = 47,746.30/x
  3. Step 3: Cross multiply
    62,878.72x = 86,739.12 × 47,746.30
  4. Step 4: Simplify right side
    62,878.72x = 4,141,472,045.26
  5. Step 5: Solve for x
    x = 4,141,472,045.26/62,878.72
  6. Step 6: Final answer
    x = 65,864.45

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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.