Home / 83,688.12-115,495.26-45,962.76

Finding the Fourth Proportional to 83,688.12, 115,495.26 and 45,962.76

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Solution

The fourth proportional to 83,688.12, 115,495.26 and 45,962.76 is: 63,431.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,688.12 : 115,495.26 = 45,962.76 : x
  2. Step 2: Convert to fraction form
    83,688.12/115,495.26 = 45,962.76/x
  3. Step 3: Cross multiply
    83,688.12x = 115,495.26 × 45,962.76
  4. Step 4: Simplify right side
    83,688.12x = 5,308,480,916.52
  5. Step 5: Solve for x
    x = 5,308,480,916.52/83,688.12
  6. Step 6: Final answer
    x = 63,431.71

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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.