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Finding the Fourth Proportional to 86,951.98, 130,417.08 and 27,782.74

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Solution

The fourth proportional to 86,951.98, 130,417.08 and 27,782.74 is: 41,670.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,951.98 : 130,417.08 = 27,782.74 : x
  2. Step 2: Convert to fraction form
    86,951.98/130,417.08 = 27,782.74/x
  3. Step 3: Cross multiply
    86,951.98x = 130,417.08 × 27,782.74
  4. Step 4: Simplify right side
    86,951.98x = 3,623,343,825.20
  5. Step 5: Solve for x
    x = 3,623,343,825.20/86,951.98
  6. Step 6: Final answer
    x = 41,670.63

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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.