Home / 56,422.08-84,655.80-28,357.20

Finding the Fourth Proportional to 56,422.08, 84,655.80 and 28,357.20

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Solution

The fourth proportional to 56,422.08, 84,655.80 and 28,357.20 is: 42,547.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,422.08 : 84,655.80 = 28,357.20 : x
  2. Step 2: Convert to fraction form
    56,422.08/84,655.80 = 28,357.20/x
  3. Step 3: Cross multiply
    56,422.08x = 84,655.80 × 28,357.20
  4. Step 4: Simplify right side
    56,422.08x = 2,400,601,451.76
  5. Step 5: Solve for x
    x = 2,400,601,451.76/56,422.08
  6. Step 6: Final answer
    x = 42,547.20

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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.