Home / 52,000.30-78,000.45-25,699.60

Finding the Fourth Proportional to 52,000.30, 78,000.45 and 25,699.60

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Solution

The fourth proportional to 52,000.30, 78,000.45 and 25,699.60 is: 38,549.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,000.30 : 78,000.45 = 25,699.60 : x
  2. Step 2: Convert to fraction form
    52,000.30/78,000.45 = 25,699.60/x
  3. Step 3: Cross multiply
    52,000.30x = 78,000.45 × 25,699.60
  4. Step 4: Simplify right side
    52,000.30x = 2,004,580,364.82
  5. Step 5: Solve for x
    x = 2,004,580,364.82/52,000.30
  6. Step 6: Final answer
    x = 38,549.40

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1.5x scale

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.