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Finding the Fourth Proportional to 40,927.60, 61,477.80 and 39,458.80

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Solution

The fourth proportional to 40,927.60, 61,477.80 and 39,458.80 is: 59,271.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,927.60 : 61,477.80 = 39,458.80 : x
  2. Step 2: Convert to fraction form
    40,927.60/61,477.80 = 39,458.80/x
  3. Step 3: Cross multiply
    40,927.60x = 61,477.80 × 39,458.80
  4. Step 4: Simplify right side
    40,927.60x = 2,425,840,214.64
  5. Step 5: Solve for x
    x = 2,425,840,214.64/40,927.60
  6. Step 6: Final answer
    x = 59,271.50

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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.