Home / 77,875.20-116,824.32-31,127.04

Finding the Fourth Proportional to 77,875.20, 116,824.32 and 31,127.04

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Solution

The fourth proportional to 77,875.20, 116,824.32 and 31,127.04 is: 46,695.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,875.20 : 116,824.32 = 31,127.04 : x
  2. Step 2: Convert to fraction form
    77,875.20/116,824.32 = 31,127.04/x
  3. Step 3: Cross multiply
    77,875.20x = 116,824.32 × 31,127.04
  4. Step 4: Simplify right side
    77,875.20x = 3,636,395,281.61
  5. Step 5: Solve for x
    x = 3,636,395,281.61/77,875.20
  6. Step 6: Final answer
    x = 46,695.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.