Home / 77,124.90-106,416.18-45,275.34

Finding the Fourth Proportional to 77,124.90, 106,416.18 and 45,275.34

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Solution

The fourth proportional to 77,124.90, 106,416.18 and 45,275.34 is: 62,470.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,124.90 : 106,416.18 = 45,275.34 : x
  2. Step 2: Convert to fraction form
    77,124.90/106,416.18 = 45,275.34/x
  3. Step 3: Cross multiply
    77,124.90x = 106,416.18 × 45,275.34
  4. Step 4: Simplify right side
    77,124.90x = 4,818,028,731.00
  5. Step 5: Solve for x
    x = 4,818,028,731.00/77,124.90
  6. Step 6: Final answer
    x = 62,470.47

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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.