Home / 62,970.13-86,870.66-42,545.60

Finding the Fourth Proportional to 62,970.13, 86,870.66 and 42,545.60

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Solution

The fourth proportional to 62,970.13, 86,870.66 and 42,545.60 is: 58,693.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,970.13 : 86,870.66 = 42,545.60 : x
  2. Step 2: Convert to fraction form
    62,970.13/86,870.66 = 42,545.60/x
  3. Step 3: Cross multiply
    62,970.13x = 86,870.66 × 42,545.60
  4. Step 4: Simplify right side
    62,970.13x = 3,695,964,352.10
  5. Step 5: Solve for x
    x = 3,695,964,352.10/62,970.13
  6. Step 6: Final answer
    x = 58,693.93

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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.