Home / 83,688.45-115,490.96-45,962.70

Finding the Fourth Proportional to 83,688.45, 115,490.96 and 45,962.70

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Solution

The fourth proportional to 83,688.45, 115,490.96 and 45,962.70 is: 63,429.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,688.45 : 115,490.96 = 45,962.70 : x
  2. Step 2: Convert to fraction form
    83,688.45/115,490.96 = 45,962.70/x
  3. Step 3: Cross multiply
    83,688.45x = 115,490.96 × 45,962.70
  4. Step 4: Simplify right side
    83,688.45x = 5,308,276,347.19
  5. Step 5: Solve for x
    x = 5,308,276,347.19/83,688.45
  6. Step 6: Final answer
    x = 63,429.02

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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.