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Finding the Fourth Proportional to 58,263.60, 87,330.60 and 31,987.20

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Solution

The fourth proportional to 58,263.60, 87,330.60 and 31,987.20 is: 47,945.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,263.60 : 87,330.60 = 31,987.20 : x
  2. Step 2: Convert to fraction form
    58,263.60/87,330.60 = 31,987.20/x
  3. Step 3: Cross multiply
    58,263.60x = 87,330.60 × 31,987.20
  4. Step 4: Simplify right side
    58,263.60x = 2,793,461,368.32
  5. Step 5: Solve for x
    x = 2,793,461,368.32/58,263.60
  6. Step 6: Final answer
    x = 47,945.22

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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.