Home / 52,478.55-78,703.43-31,402.01

Finding the Fourth Proportional to 52,478.55, 78,703.43 and 31,402.01

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Solution

The fourth proportional to 52,478.55, 78,703.43 and 31,402.01 is: 47,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,478.55 : 78,703.43 = 31,402.01 : x
  2. Step 2: Convert to fraction form
    52,478.55/78,703.43 = 31,402.01/x
  3. Step 3: Cross multiply
    52,478.55x = 78,703.43 × 31,402.01
  4. Step 4: Simplify right side
    52,478.55x = 2,471,445,895.89
  5. Step 5: Solve for x
    x = 2,471,445,895.89/52,478.55
  6. Step 6: Final answer
    x = 47,094.40

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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.