Home / 78,297.16-108,050.36-42,487.17

Finding the Fourth Proportional to 78,297.16, 108,050.36 and 42,487.17

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Solution

The fourth proportional to 78,297.16, 108,050.36 and 42,487.17 is: 58,632.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,297.16 : 108,050.36 = 42,487.17 : x
  2. Step 2: Convert to fraction form
    78,297.16/108,050.36 = 42,487.17/x
  3. Step 3: Cross multiply
    78,297.16x = 108,050.36 × 42,487.17
  4. Step 4: Simplify right side
    78,297.16x = 4,590,754,013.88
  5. Step 5: Solve for x
    x = 4,590,754,013.88/78,297.16
  6. Step 6: Final answer
    x = 58,632.45

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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.