Home / 72,547.20-100,102.50-40,717.44

Finding the Fourth Proportional to 72,547.20, 100,102.50 and 40,717.44

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Solution

The fourth proportional to 72,547.20, 100,102.50 and 40,717.44 is: 56,182.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,547.20 : 100,102.50 = 40,717.44 : x
  2. Step 2: Convert to fraction form
    72,547.20/100,102.50 = 40,717.44/x
  3. Step 3: Cross multiply
    72,547.20x = 100,102.50 × 40,717.44
  4. Step 4: Simplify right side
    72,547.20x = 4,075,917,537.60
  5. Step 5: Solve for x
    x = 4,075,917,537.60/72,547.20
  6. Step 6: Final answer
    x = 56,182.98

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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.