Home / 85,597.77-128,309.16-29,421.03

Finding the Fourth Proportional to 85,597.77, 128,309.16 and 29,421.03

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Solution

The fourth proportional to 85,597.77, 128,309.16 and 29,421.03 is: 44,101.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,597.77 : 128,309.16 = 29,421.03 : x
  2. Step 2: Convert to fraction form
    85,597.77/128,309.16 = 29,421.03/x
  3. Step 3: Cross multiply
    85,597.77x = 128,309.16 × 29,421.03
  4. Step 4: Simplify right side
    85,597.77x = 3,774,987,645.63
  5. Step 5: Solve for x
    x = 3,774,987,645.63/85,597.77
  6. Step 6: Final answer
    x = 44,101.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.