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Finding the Fourth Proportional to 99,646.80, 149,477.48 and 40,483.59

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Solution

The fourth proportional to 99,646.80, 149,477.48 and 40,483.59 is: 60,728.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,646.80 : 149,477.48 = 40,483.59 : x
  2. Step 2: Convert to fraction form
    99,646.80/149,477.48 = 40,483.59/x
  3. Step 3: Cross multiply
    99,646.80x = 149,477.48 × 40,483.59
  4. Step 4: Simplify right side
    99,646.80x = 6,051,385,014.55
  5. Step 5: Solve for x
    x = 6,051,385,014.55/99,646.80
  6. Step 6: Final answer
    x = 60,728.34

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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.