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Finding the Fourth Proportional to 86,901.50, 119,924.07 and 47,157.50

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Solution

The fourth proportional to 86,901.50, 119,924.07 and 47,157.50 is: 65,077.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,901.50 : 119,924.07 = 47,157.50 : x
  2. Step 2: Convert to fraction form
    86,901.50/119,924.07 = 47,157.50/x
  3. Step 3: Cross multiply
    86,901.50x = 119,924.07 × 47,157.50
  4. Step 4: Simplify right side
    86,901.50x = 5,655,319,331.03
  5. Step 5: Solve for x
    x = 5,655,319,331.03/86,901.50
  6. Step 6: Final answer
    x = 65,077.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.