Home / 42,743.04-64,127.45-12,758.24

Finding the Fourth Proportional to 42,743.04, 64,127.45 and 12,758.24

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Solution

The fourth proportional to 42,743.04, 64,127.45 and 12,758.24 is: 19,141.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,743.04 : 64,127.45 = 12,758.24 : x
  2. Step 2: Convert to fraction form
    42,743.04/64,127.45 = 12,758.24/x
  3. Step 3: Cross multiply
    42,743.04x = 64,127.45 × 12,758.24
  4. Step 4: Simplify right side
    42,743.04x = 818,153,463.60
  5. Step 5: Solve for x
    x = 818,153,463.60/42,743.04
  6. Step 6: Final answer
    x = 19,141.21

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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.