Home / 77,275.64-106,643.02-43,285.58

Finding the Fourth Proportional to 77,275.64, 106,643.02 and 43,285.58

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Solution

The fourth proportional to 77,275.64, 106,643.02 and 43,285.58 is: 59,735.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,275.64 : 106,643.02 = 43,285.58 : x
  2. Step 2: Convert to fraction form
    77,275.64/106,643.02 = 43,285.58/x
  3. Step 3: Cross multiply
    77,275.64x = 106,643.02 × 43,285.58
  4. Step 4: Simplify right side
    77,275.64x = 4,616,104,973.65
  5. Step 5: Solve for x
    x = 4,616,104,973.65/77,275.64
  6. Step 6: Final answer
    x = 59,735.58

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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.