Home / 57,031.16-78,703.51-31,539.25

Finding the Fourth Proportional to 57,031.16, 78,703.51 and 31,539.25

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Solution

The fourth proportional to 57,031.16, 78,703.51 and 31,539.25 is: 43,524.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,031.16 : 78,703.51 = 31,539.25 : x
  2. Step 2: Convert to fraction form
    57,031.16/78,703.51 = 31,539.25/x
  3. Step 3: Cross multiply
    57,031.16x = 78,703.51 × 31,539.25
  4. Step 4: Simplify right side
    57,031.16x = 2,482,249,677.77
  5. Step 5: Solve for x
    x = 2,482,249,677.77/57,031.16
  6. Step 6: Final answer
    x = 43,524.45

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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.