Home / 56,402.96-77,834.40-30,909.02

Finding the Fourth Proportional to 56,402.96, 77,834.40 and 30,909.02

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Solution

The fourth proportional to 56,402.96, 77,834.40 and 30,909.02 is: 42,653.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,402.96 : 77,834.40 = 30,909.02 : x
  2. Step 2: Convert to fraction form
    56,402.96/77,834.40 = 30,909.02/x
  3. Step 3: Cross multiply
    56,402.96x = 77,834.40 × 30,909.02
  4. Step 4: Simplify right side
    56,402.96x = 2,405,785,026.29
  5. Step 5: Solve for x
    x = 2,405,785,026.29/56,402.96
  6. Step 6: Final answer
    x = 42,653.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.