Home / 57,030.16-78,702.13-31,538.25

Finding the Fourth Proportional to 57,030.16, 78,702.13 and 31,538.25

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Solution

The fourth proportional to 57,030.16, 78,702.13 and 31,538.25 is: 43,523.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,030.16 : 78,702.13 = 31,538.25 : x
  2. Step 2: Convert to fraction form
    57,030.16/78,702.13 = 31,538.25/x
  3. Step 3: Cross multiply
    57,030.16x = 78,702.13 × 31,538.25
  4. Step 4: Simplify right side
    57,030.16x = 2,482,127,451.47
  5. Step 5: Solve for x
    x = 2,482,127,451.47/57,030.16
  6. Step 6: Final answer
    x = 43,523.07

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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.