Home / 85,484.12-128,272.08-35,598.68

Finding the Fourth Proportional to 85,484.12, 128,272.08 and 35,598.68

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Solution

The fourth proportional to 85,484.12, 128,272.08 and 35,598.68 is: 53,417.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,484.12 : 128,272.08 = 35,598.68 : x
  2. Step 2: Convert to fraction form
    85,484.12/128,272.08 = 35,598.68/x
  3. Step 3: Cross multiply
    85,484.12x = 128,272.08 × 35,598.68
  4. Step 4: Simplify right side
    85,484.12x = 4,566,316,728.85
  5. Step 5: Solve for x
    x = 4,566,316,728.85/85,484.12
  6. Step 6: Final answer
    x = 53,417.13

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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.