Home / 72,720.48-100,271.52-51,203.35

Finding the Fourth Proportional to 72,720.48, 100,271.52 and 51,203.35

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Solution

The fourth proportional to 72,720.48, 100,271.52 and 51,203.35 is: 70,602.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,720.48 : 100,271.52 = 51,203.35 : x
  2. Step 2: Convert to fraction form
    72,720.48/100,271.52 = 51,203.35/x
  3. Step 3: Cross multiply
    72,720.48x = 100,271.52 × 51,203.35
  4. Step 4: Simplify right side
    72,720.48x = 5,134,237,733.59
  5. Step 5: Solve for x
    x = 5,134,237,733.59/72,720.48
  6. Step 6: Final answer
    x = 70,602.36

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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.