Home / 85,349.04-127,996.00-28,407.76

Finding the Fourth Proportional to 85,349.04, 127,996.00 and 28,407.76

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Solution

The fourth proportional to 85,349.04, 127,996.00 and 28,407.76 is: 42,602.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,349.04 : 127,996.00 = 28,407.76 : x
  2. Step 2: Convert to fraction form
    85,349.04/127,996.00 = 28,407.76/x
  3. Step 3: Cross multiply
    85,349.04x = 127,996.00 × 28,407.76
  4. Step 4: Simplify right side
    85,349.04x = 3,636,079,977.93
  5. Step 5: Solve for x
    x = 3,636,079,977.93/85,349.04
  6. Step 6: Final answer
    x = 42,602.47

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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.