Home / 77,656.40-106,901.36-57,475.24

Finding the Fourth Proportional to 77,656.40, 106,901.36 and 57,475.24

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Solution

The fourth proportional to 77,656.40, 106,901.36 and 57,475.24 is: 79,120.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,656.40 : 106,901.36 = 57,475.24 : x
  2. Step 2: Convert to fraction form
    77,656.40/106,901.36 = 57,475.24/x
  3. Step 3: Cross multiply
    77,656.40x = 106,901.36 × 57,475.24
  4. Step 4: Simplify right side
    77,656.40x = 6,144,181,322.33
  5. Step 5: Solve for x
    x = 6,144,181,322.33/77,656.40
  6. Step 6: Final answer
    x = 79,120.09

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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.