Home / 58,378.52-80,534.40-56,115.20

Finding the Fourth Proportional to 58,378.52, 80,534.40 and 56,115.20

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Solution

The fourth proportional to 58,378.52, 80,534.40 and 56,115.20 is: 77,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,378.52 : 80,534.40 = 56,115.20 : x
  2. Step 2: Convert to fraction form
    58,378.52/80,534.40 = 56,115.20/x
  3. Step 3: Cross multiply
    58,378.52x = 80,534.40 × 56,115.20
  4. Step 4: Simplify right side
    58,378.52x = 4,519,203,953.78
  5. Step 5: Solve for x
    x = 4,519,203,953.78/58,378.52
  6. Step 6: Final answer
    x = 77,412.10

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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.