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Finding the Fourth Proportional to 58,020.60, 87,030.90 and 38,321.40

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Solution

The fourth proportional to 58,020.60, 87,030.90 and 38,321.40 is: 57,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,020.60 : 87,030.90 = 38,321.40 : x
  2. Step 2: Convert to fraction form
    58,020.60/87,030.90 = 38,321.40/x
  3. Step 3: Cross multiply
    58,020.60x = 87,030.90 × 38,321.40
  4. Step 4: Simplify right side
    58,020.60x = 3,335,145,931.26
  5. Step 5: Solve for x
    x = 3,335,145,931.26/58,020.60
  6. Step 6: Final answer
    x = 57,482.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.