Home / 101,741.52-140,399.40-56,421.36

Finding the Fourth Proportional to 101,741.52, 140,399.40 and 56,421.36

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Solution

The fourth proportional to 101,741.52, 140,399.40 and 56,421.36 is: 77,859.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,741.52 : 140,399.40 = 56,421.36 : x
  2. Step 2: Convert to fraction form
    101,741.52/140,399.40 = 56,421.36/x
  3. Step 3: Cross multiply
    101,741.52x = 140,399.40 × 56,421.36
  4. Step 4: Simplify right side
    101,741.52x = 7,921,525,091.18
  5. Step 5: Solve for x
    x = 7,921,525,091.18/101,741.52
  6. Step 6: Final answer
    x = 77,859.32

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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.