Home / 53,970.35-74,488.10-31,328.15

Finding the Fourth Proportional to 53,970.35, 74,488.10 and 31,328.15

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Solution

The fourth proportional to 53,970.35, 74,488.10 and 31,328.15 is: 43,238.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,970.35 : 74,488.10 = 31,328.15 : x
  2. Step 2: Convert to fraction form
    53,970.35/74,488.10 = 31,328.15/x
  3. Step 3: Cross multiply
    53,970.35x = 74,488.10 × 31,328.15
  4. Step 4: Simplify right side
    53,970.35x = 2,333,573,840.93
  5. Step 5: Solve for x
    x = 2,333,573,840.93/53,970.35
  6. Step 6: Final answer
    x = 43,238.08

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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.