Home / 85,577.03-128,365.91-56,180.87

Finding the Fourth Proportional to 85,577.03, 128,365.91 and 56,180.87

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Solution

The fourth proportional to 85,577.03, 128,365.91 and 56,180.87 is: 84,271.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,577.03 : 128,365.91 = 56,180.87 : x
  2. Step 2: Convert to fraction form
    85,577.03/128,365.91 = 56,180.87/x
  3. Step 3: Cross multiply
    85,577.03x = 128,365.91 × 56,180.87
  4. Step 4: Simplify right side
    85,577.03x = 7,211,708,502.14
  5. Step 5: Solve for x
    x = 7,211,708,502.14/85,577.03
  6. Step 6: Final answer
    x = 84,271.54

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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.