Home / 81,545.10-112,533.38-49,275.24

Finding the Fourth Proportional to 81,545.10, 112,533.38 and 49,275.24

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Solution

The fourth proportional to 81,545.10, 112,533.38 and 49,275.24 is: 68,000.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,545.10 : 112,533.38 = 49,275.24 : x
  2. Step 2: Convert to fraction form
    81,545.10/112,533.38 = 49,275.24/x
  3. Step 3: Cross multiply
    81,545.10x = 112,533.38 × 49,275.24
  4. Step 4: Simplify right side
    81,545.10x = 5,545,109,307.51
  5. Step 5: Solve for x
    x = 5,545,109,307.51/81,545.10
  6. Step 6: Final answer
    x = 68,000.52

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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.