Home / 77,373.36-106,779.72-43,380.16

Finding the Fourth Proportional to 77,373.36, 106,779.72 and 43,380.16

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Solution

The fourth proportional to 77,373.36, 106,779.72 and 43,380.16 is: 59,867.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,373.36 : 106,779.72 = 43,380.16 : x
  2. Step 2: Convert to fraction form
    77,373.36/106,779.72 = 43,380.16/x
  3. Step 3: Cross multiply
    77,373.36x = 106,779.72 × 43,380.16
  4. Step 4: Simplify right side
    77,373.36x = 4,632,121,338.36
  5. Step 5: Solve for x
    x = 4,632,121,338.36/77,373.36
  6. Step 6: Final answer
    x = 59,867.13

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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.