Home / 56,430.72-84,149.28-52,490.88

Finding the Fourth Proportional to 56,430.72, 84,149.28 and 52,490.88

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Solution

The fourth proportional to 56,430.72, 84,149.28 and 52,490.88 is: 78,274.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,430.72 : 84,149.28 = 52,490.88 : x
  2. Step 2: Convert to fraction form
    56,430.72/84,149.28 = 52,490.88/x
  3. Step 3: Cross multiply
    56,430.72x = 84,149.28 × 52,490.88
  4. Step 4: Simplify right side
    56,430.72x = 4,417,069,758.57
  5. Step 5: Solve for x
    x = 4,417,069,758.57/56,430.72
  6. Step 6: Final answer
    x = 78,274.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.