Home / 72,547.54-100,125.38-40,718.18

Finding the Fourth Proportional to 72,547.54, 100,125.38 and 40,718.18

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Solution

The fourth proportional to 72,547.54, 100,125.38 and 40,718.18 is: 56,196.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,547.54 : 100,125.38 = 40,718.18 : x
  2. Step 2: Convert to fraction form
    72,547.54/100,125.38 = 40,718.18/x
  3. Step 3: Cross multiply
    72,547.54x = 100,125.38 × 40,718.18
  4. Step 4: Simplify right side
    72,547.54x = 4,076,923,041.82
  5. Step 5: Solve for x
    x = 4,076,923,041.82/72,547.54
  6. Step 6: Final answer
    x = 56,196.57

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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.