Home / 77,916.56-107,503.08-52,458.80

Finding the Fourth Proportional to 77,916.56, 107,503.08 and 52,458.80

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Solution

The fourth proportional to 77,916.56, 107,503.08 and 52,458.80 is: 72,378.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,916.56 : 107,503.08 = 52,458.80 : x
  2. Step 2: Convert to fraction form
    77,916.56/107,503.08 = 52,458.80/x
  3. Step 3: Cross multiply
    77,916.56x = 107,503.08 × 52,458.80
  4. Step 4: Simplify right side
    77,916.56x = 5,639,482,573.10
  5. Step 5: Solve for x
    x = 5,639,482,573.10/77,916.56
  6. Step 6: Final answer
    x = 72,378.49

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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.