Home / 56,457.05-84,685.71-19,043.40

Finding the Fourth Proportional to 56,457.05, 84,685.71 and 19,043.40

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Solution

The fourth proportional to 56,457.05, 84,685.71 and 19,043.40 is: 28,565.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,457.05 : 84,685.71 = 19,043.40 : x
  2. Step 2: Convert to fraction form
    56,457.05/84,685.71 = 19,043.40/x
  3. Step 3: Cross multiply
    56,457.05x = 84,685.71 × 19,043.40
  4. Step 4: Simplify right side
    56,457.05x = 1,612,703,849.81
  5. Step 5: Solve for x
    x = 1,612,703,849.81/56,457.05
  6. Step 6: Final answer
    x = 28,565.15

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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.