Home / 72,510.36-100,064.28-42,316.44

Finding the Fourth Proportional to 72,510.36, 100,064.28 and 42,316.44

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Solution

The fourth proportional to 72,510.36, 100,064.28 and 42,316.44 is: 58,396.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,510.36 : 100,064.28 = 42,316.44 : x
  2. Step 2: Convert to fraction form
    72,510.36/100,064.28 = 42,316.44/x
  3. Step 3: Cross multiply
    72,510.36x = 100,064.28 × 42,316.44
  4. Step 4: Simplify right side
    72,510.36x = 4,234,364,100.76
  5. Step 5: Solve for x
    x = 4,234,364,100.76/72,510.36
  6. Step 6: Final answer
    x = 58,396.68

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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.