Home / 85,071.42-127,613.04-28,888.62

Finding the Fourth Proportional to 85,071.42, 127,613.04 and 28,888.62

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Solution

The fourth proportional to 85,071.42, 127,613.04 and 28,888.62 is: 43,334.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,071.42 : 127,613.04 = 28,888.62 : x
  2. Step 2: Convert to fraction form
    85,071.42/127,613.04 = 28,888.62/x
  3. Step 3: Cross multiply
    85,071.42x = 127,613.04 × 28,888.62
  4. Step 4: Simplify right side
    85,071.42x = 3,686,564,619.60
  5. Step 5: Solve for x
    x = 3,686,564,619.60/85,071.42
  6. Step 6: Final answer
    x = 43,334.94

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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.