Home / 56,207.28-77,430.48-48,115.20

Finding the Fourth Proportional to 56,207.28, 77,430.48 and 48,115.20

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Solution

The fourth proportional to 56,207.28, 77,430.48 and 48,115.20 is: 66,282.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,207.28 : 77,430.48 = 48,115.20 : x
  2. Step 2: Convert to fraction form
    56,207.28/77,430.48 = 48,115.20/x
  3. Step 3: Cross multiply
    56,207.28x = 77,430.48 × 48,115.20
  4. Step 4: Simplify right side
    56,207.28x = 3,725,583,031.30
  5. Step 5: Solve for x
    x = 3,725,583,031.30/56,207.28
  6. Step 6: Final answer
    x = 66,282.93

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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.