Home / 56,025.62-77,315.36-30,875.12

Finding the Fourth Proportional to 56,025.62, 77,315.36 and 30,875.12

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Solution

The fourth proportional to 56,025.62, 77,315.36 and 30,875.12 is: 42,607.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,025.62 : 77,315.36 = 30,875.12 : x
  2. Step 2: Convert to fraction form
    56,025.62/77,315.36 = 30,875.12/x
  3. Step 3: Cross multiply
    56,025.62x = 77,315.36 × 30,875.12
  4. Step 4: Simplify right side
    56,025.62x = 2,387,121,017.84
  5. Step 5: Solve for x
    x = 2,387,121,017.84/56,025.62
  6. Step 6: Final answer
    x = 42,607.67

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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.