Home / 43,130.16-64,695.20-19,409.98

Finding the Fourth Proportional to 43,130.16, 64,695.20 and 19,409.98

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Solution

The fourth proportional to 43,130.16, 64,695.20 and 19,409.98 is: 29,114.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,130.16 : 64,695.20 = 19,409.98 : x
  2. Step 2: Convert to fraction form
    43,130.16/64,695.20 = 19,409.98/x
  3. Step 3: Cross multiply
    43,130.16x = 64,695.20 × 19,409.98
  4. Step 4: Simplify right side
    43,130.16x = 1,255,732,538.10
  5. Step 5: Solve for x
    x = 1,255,732,538.10/43,130.16
  6. Step 6: Final answer
    x = 29,114.95

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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.