Home / 78,507.45-108,368.10-46,676.19

Finding the Fourth Proportional to 78,507.45, 108,368.10 and 46,676.19

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Solution

The fourth proportional to 78,507.45, 108,368.10 and 46,676.19 is: 64,429.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,507.45 : 108,368.10 = 46,676.19 : x
  2. Step 2: Convert to fraction form
    78,507.45/108,368.10 = 46,676.19/x
  3. Step 3: Cross multiply
    78,507.45x = 108,368.10 × 46,676.19
  4. Step 4: Simplify right side
    78,507.45x = 5,058,210,025.54
  5. Step 5: Solve for x
    x = 5,058,210,025.54/78,507.45
  6. Step 6: Final answer
    x = 64,429.68

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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.