Home / 56,266.51-84,373.80-20,718.91

Finding the Fourth Proportional to 56,266.51, 84,373.80 and 20,718.91

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Solution

The fourth proportional to 56,266.51, 84,373.80 and 20,718.91 is: 31,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,266.51 : 84,373.80 = 20,718.91 : x
  2. Step 2: Convert to fraction form
    56,266.51/84,373.80 = 20,718.91/x
  3. Step 3: Cross multiply
    56,266.51x = 84,373.80 × 20,718.91
  4. Step 4: Simplify right side
    56,266.51x = 1,748,133,168.56
  5. Step 5: Solve for x
    x = 1,748,133,168.56/56,266.51
  6. Step 6: Final answer
    x = 31,068.80

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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.