Home / 72,711.02-100,307.53-42,497.62

Finding the Fourth Proportional to 72,711.02, 100,307.53 and 42,497.62

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Solution

The fourth proportional to 72,711.02, 100,307.53 and 42,497.62 is: 58,627.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,711.02 : 100,307.53 = 42,497.62 : x
  2. Step 2: Convert to fraction form
    72,711.02/100,307.53 = 42,497.62/x
  3. Step 3: Cross multiply
    72,711.02x = 100,307.53 × 42,497.62
  4. Step 4: Simplify right side
    72,711.02x = 4,262,831,095.43
  5. Step 5: Solve for x
    x = 4,262,831,095.43/72,711.02
  6. Step 6: Final answer
    x = 58,627.03

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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.