Home / 45,564.31-68,323.05-20,590.83

Finding the Fourth Proportional to 45,564.31, 68,323.05 and 20,590.83

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Solution

The fourth proportional to 45,564.31, 68,323.05 and 20,590.83 is: 30,875.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,564.31 : 68,323.05 = 20,590.83 : x
  2. Step 2: Convert to fraction form
    45,564.31/68,323.05 = 20,590.83/x
  3. Step 3: Cross multiply
    45,564.31x = 68,323.05 × 20,590.83
  4. Step 4: Simplify right side
    45,564.31x = 1,406,828,307.63
  5. Step 5: Solve for x
    x = 1,406,828,307.63/45,564.31
  6. Step 6: Final answer
    x = 30,875.66

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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.