Home / 72,011.48-99,374.99-39,746.34

Finding the Fourth Proportional to 72,011.48, 99,374.99 and 39,746.34

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Solution

The fourth proportional to 72,011.48, 99,374.99 and 39,746.34 is: 54,849.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,011.48 : 99,374.99 = 39,746.34 : x
  2. Step 2: Convert to fraction form
    72,011.48/99,374.99 = 39,746.34/x
  3. Step 3: Cross multiply
    72,011.48x = 99,374.99 × 39,746.34
  4. Step 4: Simplify right side
    72,011.48x = 3,949,791,941.30
  5. Step 5: Solve for x
    x = 3,949,791,941.30/72,011.48
  6. Step 6: Final answer
    x = 54,849.48

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Similar ratio
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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.