Home / 78,646.14-108,555.39-53,510.22

Finding the Fourth Proportional to 78,646.14, 108,555.39 and 53,510.22

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Solution

The fourth proportional to 78,646.14, 108,555.39 and 53,510.22 is: 73,860.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,646.14 : 108,555.39 = 53,510.22 : x
  2. Step 2: Convert to fraction form
    78,646.14/108,555.39 = 53,510.22/x
  3. Step 3: Cross multiply
    78,646.14x = 108,555.39 × 53,510.22
  4. Step 4: Simplify right side
    78,646.14x = 5,808,822,801.09
  5. Step 5: Solve for x
    x = 5,808,822,801.09/78,646.14
  6. Step 6: Final answer
    x = 73,860.24

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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.