Home / 77,106.32-106,455.72-59,167.28

Finding the Fourth Proportional to 77,106.32, 106,455.72 and 59,167.28

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Solution

The fourth proportional to 77,106.32, 106,455.72 and 59,167.28 is: 81,688.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,106.32 : 106,455.72 = 59,167.28 : x
  2. Step 2: Convert to fraction form
    77,106.32/106,455.72 = 59,167.28/x
  3. Step 3: Cross multiply
    77,106.32x = 106,455.72 × 59,167.28
  4. Step 4: Simplify right side
    77,106.32x = 6,298,695,392.84
  5. Step 5: Solve for x
    x = 6,298,695,392.84/77,106.32
  6. Step 6: Final answer
    x = 81,688.45

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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.