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Finding the Fourth Proportional to 86,948.70, 130,374.45 and 37,020.30

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Solution

The fourth proportional to 86,948.70, 130,374.45 and 37,020.30 is: 55,509.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,948.70 : 130,374.45 = 37,020.30 : x
  2. Step 2: Convert to fraction form
    86,948.70/130,374.45 = 37,020.30/x
  3. Step 3: Cross multiply
    86,948.70x = 130,374.45 × 37,020.30
  4. Step 4: Simplify right side
    86,948.70x = 4,826,501,251.34
  5. Step 5: Solve for x
    x = 4,826,501,251.34/86,948.70
  6. Step 6: Final answer
    x = 55,509.76

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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.