Home / 85,504.37-128,280.04-35,607.83

Finding the Fourth Proportional to 85,504.37, 128,280.04 and 35,607.83

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Solution

The fourth proportional to 85,504.37, 128,280.04 and 35,607.83 is: 53,421.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,504.37 : 128,280.04 = 35,607.83 : x
  2. Step 2: Convert to fraction form
    85,504.37/128,280.04 = 35,607.83/x
  3. Step 3: Cross multiply
    85,504.37x = 128,280.04 × 35,607.83
  4. Step 4: Simplify right side
    85,504.37x = 4,567,773,126.29
  5. Step 5: Solve for x
    x = 4,567,773,126.29/85,504.37
  6. Step 6: Final answer
    x = 53,421.52

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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.