Home / 72,484.09-100,031.42-45,276.29

Finding the Fourth Proportional to 72,484.09, 100,031.42 and 45,276.29

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Solution

The fourth proportional to 72,484.09, 100,031.42 and 45,276.29 is: 62,483.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,484.09 : 100,031.42 = 45,276.29 : x
  2. Step 2: Convert to fraction form
    72,484.09/100,031.42 = 45,276.29/x
  3. Step 3: Cross multiply
    72,484.09x = 100,031.42 × 45,276.29
  4. Step 4: Simplify right side
    72,484.09x = 4,529,050,854.49
  5. Step 5: Solve for x
    x = 4,529,050,854.49/72,484.09
  6. Step 6: Final answer
    x = 62,483.38

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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.