Home / 72,548.16-100,090.80-47,412.24

Finding the Fourth Proportional to 72,548.16, 100,090.80 and 47,412.24

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Solution

The fourth proportional to 72,548.16, 100,090.80 and 47,412.24 is: 65,412.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,548.16 : 100,090.80 = 47,412.24 : x
  2. Step 2: Convert to fraction form
    72,548.16/100,090.80 = 47,412.24/x
  3. Step 3: Cross multiply
    72,548.16x = 100,090.80 × 47,412.24
  4. Step 4: Simplify right side
    72,548.16x = 4,745,529,031.39
  5. Step 5: Solve for x
    x = 4,745,529,031.39/72,548.16
  6. Step 6: Final answer
    x = 65,412.12

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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.