Home / 72,545.29-100,122.27-40,715.93

Finding the Fourth Proportional to 72,545.29, 100,122.27 and 40,715.93

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Solution

The fourth proportional to 72,545.29, 100,122.27 and 40,715.93 is: 56,193.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,545.29 : 100,122.27 = 40,715.93 : x
  2. Step 2: Convert to fraction form
    72,545.29/100,122.27 = 40,715.93/x
  3. Step 3: Cross multiply
    72,545.29x = 100,122.27 × 40,715.93
  4. Step 4: Simplify right side
    72,545.29x = 4,076,571,336.76
  5. Step 5: Solve for x
    x = 4,076,571,336.76/72,545.29
  6. Step 6: Final answer
    x = 56,193.47

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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.