Home / 56,531.64-78,013.34-31,038.44

Finding the Fourth Proportional to 56,531.64, 78,013.34 and 31,038.44

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Solution

The fourth proportional to 56,531.64, 78,013.34 and 31,038.44 is: 42,832.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,531.64 : 78,013.34 = 31,038.44 : x
  2. Step 2: Convert to fraction form
    56,531.64/78,013.34 = 31,038.44/x
  3. Step 3: Cross multiply
    56,531.64x = 78,013.34 × 31,038.44
  4. Step 4: Simplify right side
    56,531.64x = 2,421,411,827.53
  5. Step 5: Solve for x
    x = 2,421,411,827.53/56,531.64
  6. Step 6: Final answer
    x = 42,832.86

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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.