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Finding the Fourth Proportional to 86,863.32, 130,041.45 and 53,483.22

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Solution

The fourth proportional to 86,863.32, 130,041.45 and 53,483.22 is: 80,068.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,863.32 : 130,041.45 = 53,483.22 : x
  2. Step 2: Convert to fraction form
    86,863.32/130,041.45 = 53,483.22/x
  3. Step 3: Cross multiply
    86,863.32x = 130,041.45 × 53,483.22
  4. Step 4: Simplify right side
    86,863.32x = 6,955,035,479.47
  5. Step 5: Solve for x
    x = 6,955,035,479.47/86,863.32
  6. Step 6: Final answer
    x = 80,068.73

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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.