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Finding the Fourth Proportional to 85,053.12, 127,510.09 and 47,101.08

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Solution

The fourth proportional to 85,053.12, 127,510.09 and 47,101.08 is: 70,613.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,053.12 : 127,510.09 = 47,101.08 : x
  2. Step 2: Convert to fraction form
    85,053.12/127,510.09 = 47,101.08/x
  3. Step 3: Cross multiply
    85,053.12x = 127,510.09 × 47,101.08
  4. Step 4: Simplify right side
    85,053.12x = 6,005,862,832.14
  5. Step 5: Solve for x
    x = 6,005,862,832.14/85,053.12
  6. Step 6: Final answer
    x = 70,613.08

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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.