Home / 47,668.16-65,772.48-28,806.32

Finding the Fourth Proportional to 47,668.16, 65,772.48 and 28,806.32

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Solution

The fourth proportional to 47,668.16, 65,772.48 and 28,806.32 is: 39,746.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,668.16 : 65,772.48 = 28,806.32 : x
  2. Step 2: Convert to fraction form
    47,668.16/65,772.48 = 28,806.32/x
  3. Step 3: Cross multiply
    47,668.16x = 65,772.48 × 28,806.32
  4. Step 4: Simplify right side
    47,668.16x = 1,894,663,106.07
  5. Step 5: Solve for x
    x = 1,894,663,106.07/47,668.16
  6. Step 6: Final answer
    x = 39,746.93

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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.