Home / 56,153.20-77,490.90-31,002.64

Finding the Fourth Proportional to 56,153.20, 77,490.90 and 31,002.64

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Solution

The fourth proportional to 56,153.20, 77,490.90 and 31,002.64 is: 42,783.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,153.20 : 77,490.90 = 31,002.64 : x
  2. Step 2: Convert to fraction form
    56,153.20/77,490.90 = 31,002.64/x
  3. Step 3: Cross multiply
    56,153.20x = 77,490.90 × 31,002.64
  4. Step 4: Simplify right side
    56,153.20x = 2,402,422,475.98
  5. Step 5: Solve for x
    x = 2,402,422,475.98/56,153.20
  6. Step 6: Final answer
    x = 42,783.36

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1.5x scale

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.