Home / 72,545.55-100,117.65-40,716.60

Finding the Fourth Proportional to 72,545.55, 100,117.65 and 40,716.60

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Solution

The fourth proportional to 72,545.55, 100,117.65 and 40,716.60 is: 56,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,545.55 : 100,117.65 = 40,716.60 : x
  2. Step 2: Convert to fraction form
    72,545.55/100,117.65 = 40,716.60/x
  3. Step 3: Cross multiply
    72,545.55x = 100,117.65 × 40,716.60
  4. Step 4: Simplify right side
    72,545.55x = 4,076,450,307.99
  5. Step 5: Solve for x
    x = 4,076,450,307.99/72,545.55
  6. Step 6: Final answer
    x = 56,191.60

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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.